[ { "id": "kuehschelm-2005-adv", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "Advanced Image-based Transfer Function Design", "date": "2005-12", "abstract": "In volume visualization the de\fnition of transfer functions is a critical task\r\nfor the generation of informative images. We have the fact nowadays that\r\nthe complexity of the images increases. So the problems of designing proper\r\ntransfer functions are growing too. In this work an image-based approach\r\nis presented, which tries to simplify this task by providing multiple preview\r\nimages for di\u000berent function settings, so that the user can imagine more\r\neasily how the \fnal image will look like.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 386, "image_height": 499, "name": "kuehschelm-2005-adv-image.jpg", "type": "image/jpeg", "size": 47856, "path": "Publication:kuehschelm-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 587 ], "supervisor": [ 166, 161 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 386, "image_height": 499, "name": "kuehschelm-2005-adv-image.jpg", "type": "image/jpeg", "size": 47856, "path": "Publication:kuehschelm-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "kuehschelm-2005-adv-PDF.pdf", "type": "application/pdf", "size": 1264706, "path": "Publication:kuehschelm-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/kuehschelm-2005-adv-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/kuehschelm-2005-adv/", "__class": "Publication" }, { "id": "zotti-2005-AiD", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Kalender der Steinzeit", "date": "2005-11", "abstract": "Die Zugänge zu vielen Kreisgrabenanlagen sind zu Auf- und Untergangspunkten der Sonne zu speziellen Terminen wie Sonnwenden, Tag-/Nachtgleiche und genau zwischen diesen Terminen liegenden Daten ausgerichtet. Eine große Zahl zeigt auch Ausrichtung zum Aufgangspunkt der Pleiaden und Untergangspunkt des Antares. Dieses Ereignis am Morgenhimmel konnte als Startsignal für das bäuerliche Jahr verwendet werden.\n\nHINWEIS: In diesem kleinen Artikel ist leider ein Fehler passiert: Das Südosttor von Steinabrunn ist nicht zur Wintersonnwende, sondern zum \"Zwischentermin\" Anfang November/Anfang Februar orientiert.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222 ], "issn": "0176-8522", "journal": "Archäologie in Deutschland", "number": "6", "pages_from": "27", "pages_to": "27", "volume": "2005", "research_areas": [], "keywords": [ "astronomische Orientierung", "Kreisgrabenanlagen" ], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-AiD/", "__class": "Publication" }, { "id": "coto-2005-MAC", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "MammoExplorer: An Advanced CAD Application for Breast DCE-MRI", "date": "2005-11", "abstract": "Currently X-ray mammography is the most widely used method for early detection of breast cancer. However, the use of Dynamic Contrast Enhanced\r\nMRI (DCE-MRI) has gained wider attention, since it considerably improves tumor detection and classification by analyzing the flow of contrast agent within the breast tissue. In this paper we present MammoExplorer, a CAD application that combines advanced interaction, segmentation and visualization techniques to explore Breast DCE-MRI data. Our application uses Brushing and Linking, Two-level Volume Rendering, Importance-driven Volume Rendering, and False Color Maps. In addition, we present Enhancement\r\nScatterplots, a novel graphical representation of DCE-MRI data, novel segmentation approaches, and a new way to explore time-varying CE-MRI\r\ndata.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 298, "image_height": 253, "name": "coto-2005-MAC-image.jpg", "type": "image/jpeg", "size": 34554, "path": "Publication:coto-2005-MAC", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 486, 160, 161, 166, 162, 487 ], "booktitle": "Proceedings of Vision, Modelling, and Visualization 2005", "date_from": "2005-11-16", "date_to": "2005-11-18", "editor": "G. Greiner, J. Hornegger, H. Niemann, M. Stamminger", "isbn": "3898380688", "lecturer": [ 486 ], "location": "Erlangen, Germany", "pages_from": "91", "pages_to": "98", "research_areas": [], "keywords": [ "CAD", "Breast cancer", "Contrast Enhanced MRI" ], "weblinks": [], "files": [ { "description": null, "filetitle": "Demonstration", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 1280, "preview_image_height": 1024, "name": "coto-2005-MAC-Demonstration.avi", "type": "video/x-msvideo", "size": 50733574, "path": "Publication:coto-2005-MAC", "preview_name": "coto-2005-MAC-Demonstration:preview.png", "preview_type": "image/jpeg", "preview_size": 193123, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-Demonstration.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-Demonstration:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-Demonstration:video.mp4" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 298, "image_height": 253, "name": "coto-2005-MAC-image.jpg", "type": "image/jpeg", "size": 34554, "path": "Publication:coto-2005-MAC", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "coto-2005-MAC-Paper.pdf", "type": "application/pdf", "size": 3649357, "path": "Publication:coto-2005-MAC", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/coto-2005-MAC-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "ADAPT" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/coto-2005-MAC/", "__class": "Publication" }, { "id": "TOROMANOFF-2005-ASA", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "An Adaptable Real-time Soft Shadow Algorithm for Multi-lit Semi-static Scenes", "date": "2005-11", "abstract": "Casted shadows are a crucial topic in 3D computer graphics. They have a major influence\r\non the realism and on the quality of rendered pictures. Moreover, without them, the relative\r\ndepth of the objects in a scene can often not be understood. But rendering high-quality\r\nshadows in real time is a challenging problem.\r\nThis report deals with the work done during an internship at Navigram BV. This\r\ncompany provides online 3D interactive solutions to the furniture and real estate industries.\r\nTheir products are based on a rendering engine that does not support shadowing. The aim of\r\nthis internship was therefore to implement shadowing in a real-time engine and this report\r\nexplains how we did it.\r\nWe will first describe the context of this master thesis and discuss the specificities that\r\ninfluenced our work. Then we will make a short introduction to shadowing and define the\r\nvocabulary used. The chapter IV consists in an overview of state-of-the-art shadowing\r\nmethods. Using some of the presented algorithms, we implemented the first shadowing\r\nmethods. They will be discussed in the fourth part of this report. But these basic techniques\r\ndid not provide the aimed level of quality so we had to improve them later on. Finally, we\r\nwill present the final rendering pipeline that is able to render high quality shadows in real\r\ntime by combining the various algorithms.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 932 ], "supervisor": [ 193 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "thesis", "main_file": true, "use_in_gallery": false, "access": "public", "name": "TOROMANOFF-2005-ASA-thesis.pdf", "type": "application/pdf", "size": 2964841, "path": "Publication:TOROMANOFF-2005-ASA", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TOROMANOFF-2005-ASA/TOROMANOFF-2005-ASA-thesis.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/TOROMANOFF-2005-ASA/TOROMANOFF-2005-ASA-thesis:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TOROMANOFF-2005-ASA/", "__class": "Publication" }, { "id": "Zotti-2005-vis", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "A Sky Dome Visualisation for Identification of Astronomical Orientations", "date": "2005-10", "abstract": " It has long been known that ancient temples were frequently oriented along the cardinal directions or to certain points along the horizon where Sun or Moon rise or set on special days of the year. In the last decades, archaeologists have found evidence of even older building structures buried in the soil, with doorways that also appear to have distinct orientations.\n\n This paper presents a novel diagram combining archaeological maps with a folded-apart, flattened view of the whole sky, showing the local horizon and the daily paths of sun, moon and brighter stars. By use of this diagram, interesting groupings of astronomical orientation directions, e.g. to certain sunrise and sunset points could be identified, which were evidently used to mark certain days\n of the year. Orientations to a few significant stars very likely indicated the beginning of the agricultural year in the middle\n neolithic period.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1115, "image_height": 748, "name": "Zotti-2005-vis-image.jpg", "type": "image/jpeg", "size": 61513, "path": "Publication:Zotti-2005-vis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222, 166 ], "booktitle": "Proceedings IEEE Symposium on Information Visualization", "date_from": "2005-10-23", "date_to": "2005-10-25", "editor": "John Stasko and Matt Ward", "isbn": "0-7803-9464-X", "location": "Minneapolis", "pages_from": "9", "pages_to": "16", "publisher": "IEEE", "research_areas": [], "keywords": [ "data mining", "Astronomy", "Archaeology" ], "weblinks": [], "files": [ { "description": null, "filetitle": "", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Zotti-2005-vis-.pdf", "type": "application/pdf", "size": 5527986, "path": "Publication:Zotti-2005-vis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1115, "image_height": 748, "name": "Zotti-2005-vis-image.jpg", "type": "image/jpeg", "size": 61513, "path": "Publication:Zotti-2005-vis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/Zotti-2005-vis-image:thumb{{size}}.png" } ], "projects_workgroups": [ "Skydome" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Zotti-2005-vis/", "__class": "Publication" }, { "id": "matkovic-2005-int", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Interactive Visual Analysis end Exploration of Injection Systems Simulations", "date": "2005-10", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 477, "image_height": 382, "name": "matkovic-2005-int-image.jpg", "type": "image/jpeg", "size": 75838, "path": "Publication:matkovic-2005-int", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 235, 579, 580, 756, 581 ], "booktitle": "IEEE Visualization 2005", "date_from": "2005-10-23", "date_to": "2005-10-28", "editor": "C. T. Silva, E. Gröller, H. Rushmeier", "isbn": "0780394623", "lecturer": [ 235 ], "location": "Minneapolis, USA", "pages_from": "391", "pages_to": "398", "publisher": "IEEE", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 477, "image_height": 382, "name": "matkovic-2005-int-image.jpg", "type": "image/jpeg", "size": 75838, "path": "Publication:matkovic-2005-int", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "matkovic-2005-int-PDF.pdf", "type": "application/pdf", "size": 2951387, "path": "Publication:matkovic-2005-int", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/matkovic-2005-int-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-int/", "__class": "Publication" }, { "id": "Mlejnek_2004_PF", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Profile Flags: a Novel Metaphor for Probing of T2 Maps", "date": "2005-10", "abstract": "This paper describes a tool for the visualization of T2 maps of knee cartilage. Given the anatomical scan and the T2 map of the cartilage, we combine the information on the shape and the quality of the cartilage in a single image. The Profile Flag is an intuitive 3D glyph for probing and annotating of the underlying data. It comprises a bulletin board pin-like shape with a small flag on top of it. While moving the glyph along the reconstructed surface of an object, the curve data measured along the pin's needle and in its neighborhood are shown on the flag. The application area of the Profile Flag is manifold, enabling the visualization of profile data of dense but inhomogeneous objects. Furthermore, it extracts the essential part of the data without removing or even reducing the context information. By sticking Profile Flags into the investigated structure, one or more significant locations can be annotated by showing the local characteristics of the data at that locations. In this paper we are demonstrating the properties of the tool by visualizing T2 maps of knee cartilage.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 200, "image_height": 225, "name": "Mlejnek_2004_PF-image.jpg", "type": "image/jpeg", "size": 24793, "path": "Publication:Mlejnek_2004_PF", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 179, 572, 459, 573, 574, 575, 166 ], "booktitle": "Proceedings of IEEE Visualization 2005", "date_from": "2005-10-23", "date_to": "2005-10-28", "editor": "C. T. Silva, E. Gröller, H. Rushmeier", "isbn": "0780394623", "lecturer": [ 179 ], "location": "Minneapolis, USA", "pages_from": "599", "pages_to": "606", "publisher": "IEEE CS", "research_areas": [], "keywords": [ "applications of visualization", "visualization in medicine" ], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 200, "image_height": 225, "name": "Mlejnek_2004_PF-image.jpg", "type": "image/jpeg", "size": 24793, "path": "Publication:Mlejnek_2004_PF", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-image:thumb{{size}}.png" }, { "description": "", "filetitle": "paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Mlejnek_2004_PF-paper.pdf", "type": "application/pdf", "size": 7257205, "path": "Publication:Mlejnek_2004_PF", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-paper:thumb{{size}}.png" }, { "description": "", "filetitle": "soundtrack", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Mlejnek_2004_PF-soundtrack.mp3", "type": "audio/mpeg", "size": 2654002, "path": "Publication:Mlejnek_2004_PF", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/Mlejnek_2004_PF-soundtrack.mp3", "thumb_image_sizes": [] } ], "projects_workgroups": [ "COMRADE" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Mlejnek_2004_PF/", "__class": "Publication" }, { "id": "bruckner-2005-VIS", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "VolumeShop: An Interactive System for Direct Volume Illustration", "date": "2005-10", "abstract": "Illustrations play a major role in the education process. Whether\r\nused to teach a surgical or radiologic procedure, to illustrate normal\r\nor aberrant anatomy, or to explain the functioning of a technical\r\ndevice, illustration significantly impacts learning. Although\r\nmany specimens are readily available as volumetric data sets, particularly\r\nin medicine, illustrations are commonly produced manually\r\nas static images in a time-consuming process. Our goal is to\r\ncreate a fully dynamic three-dimensional illustration environment\r\nwhich directly operates on volume data. Single images have the\r\naesthetic appeal of traditional illustrations, but can be interactively\r\naltered and explored. In this paper we present methods to realize\r\nsuch a system which combines artistic visual styles and expressive\r\nvisualization techniques. We introduce a novel concept for direct\r\nmulti-object volume visualization which allows control of the appearance\r\nof inter-penetrating objects via two-dimensional transfer\r\nfunctions. Furthermore, a unifying approach to efficiently integrate\r\nmany non-photorealistic rendering models is presented. We discuss\r\nseveral illustrative concepts which can be realized by combining\r\ncutaways, ghosting, and selective deformation. Finally, we\r\nalso propose a simple interface to specify objects of interest through\r\nthree-dimensional volumetric painting. All presented methods are\r\nintegrated into VolumeShop, an interactive hardware-accelerated\r\napplication for direct volume illustration.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 768, "name": "bruckner-2005-VIS-image.jpg", "type": "image/jpeg", "size": 72208, "path": "Publication:bruckner-2005-VIS", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 161, 166 ], "booktitle": "Proceedings of IEEE Visualization 2005", "date_from": "2005-10-23", "date_to": "2005-10-28", "editor": "C. T. Silva, E. Gröller, H. Rushmeier", "isbn": "0780394623", "location": "Minneapolis, USA", "pages_from": "671", "pages_to": "678", "research_areas": [], "keywords": [ "focus+context techniques", "illustrative visualization", "volume rendering" ], "weblinks": [], "files": [ { "description": null, "filetitle": "Carp", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-VIS-Carp.avi", "type": "video/x-msvideo", "size": 3704832, "path": "Publication:bruckner-2005-VIS", "preview_name": "bruckner-2005-VIS-Carp:preview.png", "preview_type": "image/jpeg", "preview_size": 7581, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Carp.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Carp:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Carp:video.mp4" }, { "description": null, "filetitle": "Demo", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-VIS-Demo.avi", "type": "video/x-msvideo", "size": 45974528, "path": "Publication:bruckner-2005-VIS", "preview_name": "bruckner-2005-VIS-Demo:preview.png", "preview_type": "image/jpeg", "preview_size": 13651, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Demo.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Demo:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Demo:video.mp4" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 768, "name": "bruckner-2005-VIS-image.jpg", "type": "image/jpeg", "size": 72208, "path": "Publication:bruckner-2005-VIS", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "bruckner-2005-VIS-Paper.pdf", "type": "application/pdf", "size": 7898450, "path": "Publication:bruckner-2005-VIS", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Paper:thumb{{size}}.png" }, { "description": null, "filetitle": "Split", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-VIS-Split.avi", "type": "video/x-msvideo", "size": 3847168, "path": "Publication:bruckner-2005-VIS", "preview_name": "bruckner-2005-VIS-Split:preview.png", "preview_type": "image/jpeg", "preview_size": 13194, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Split.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Split:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Split:video.mp4" }, { "description": null, "filetitle": "Trachea", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-VIS-Trachea.avi", "type": "video/x-msvideo", "size": 3839488, "path": "Publication:bruckner-2005-VIS", "preview_name": "bruckner-2005-VIS-Trachea:preview.png", "preview_type": "image/jpeg", "preview_size": 13408, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Trachea.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Trachea:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/bruckner-2005-VIS-Trachea:video.mp4" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-VIS/", "__class": "Publication" }, { "id": "gracanin-2005-soft", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Software Visualization", "date": "2005-09", "abstract": "The field of software visualization (SV) investigates approaches and techniques for static and dynamic graphical representations of algorithms, programs (code), and processed data. SV is concerned primarily with the analysis of programs and their development. The goal is to improve our understanding of inherently invisible and intangible software, particularly when dealing with large information spaces that characterize domains like software maintenance, reverse engineering, and collaborative development. The main challenge is to find effective mappings from different software aspects to graphical representations using visual metaphors. This paper provides an overview of the SV research, describes current research directions, and includes an extensive list of recommended readings.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 581, 235, 584 ], "issn": "1614-5046", "journal": "Innovations in Systems and Software Engineering, A NASA Journal", "number": "2", "pages_from": "221", "pages_to": "230", "volume": "1", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "gracanin-2005-soft-PDF.pdf", "type": "application/pdf", "size": 139827, "path": "Publication:gracanin-2005-soft", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/gracanin-2005-soft/gracanin-2005-soft-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/gracanin-2005-soft/gracanin-2005-soft-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/gracanin-2005-soft/", "__class": "Publication" }, { "id": "S05", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "Shadow Mapping of Large Environments", "date": "2005-08", "abstract": "This thesis is about shadow generation in real-time and its problems. Its focus is\r\non shadow mapping, a real-time technique to render high quality shadows. A lot\r\nof literature is available concerning shadow mapping and the problems associated\r\nwith it. But most of this literature concerns itself only with certain problematic\r\nparts of shadow mapping, but not with all the problems of shadow mapping together.\r\nIn this thesis we will give a minute report of all these problems and why\r\nand how they occur. We will discuss the major methods to cure them and identify\r\nand adopt the methods so that they can be used together for demanding real-time\r\napplications to avoid all of the shadow mapping problems.\r\nAll things considered this thesis should provide an insight into the current\r\nstate of research in the field of real-time shadow generation with shadow maps,\r\nand should expand this overview by giving the reader all the methods at hand to\r\ncure the problems of shadow mapping and use it in a complex real-time scenario\r\nwithout visible artefacts.", "authors_et_al": false, "substitute": null, "main_image": { "description": "PNG", "filetitle": "Teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "S05-Teaser.png", "type": "image/png", "size": 650340, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "supervisor": [ 193 ], "research_areas": [], "keywords": [ "real-time rendering", "shadow mapping" ], "weblinks": [], "files": [ { "description": "PDF", "filetitle": "Diploma Thesis", "main_file": true, "use_in_gallery": false, "access": "public", "name": "S05-Diploma Thesis.pdf", "type": "application/pdf", "size": 19877381, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Diploma Thesis.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Diploma Thesis:thumb{{size}}.png" }, { "description": "PNG", "filetitle": "Teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 1024, "name": "S05-Teaser.png", "type": "image/png", "size": 650340, "path": "Publication:S05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/S05-Teaser:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/S05/", "__class": "Publication" }, { "id": "jeschke-05-ISTAR", "type_id": "otherreviewed", "tu_id": null, "repositum_id": null, "title": "Image-based Representations for Accelerated Rendering of Complex Scenes", "date": "2005-08", "abstract": "This paper gives an overview of image-based representations commonly used for reducing the geometric complexity of a scene description in order to accelerate the rendering process. Several different types of representations and ways for using them have been presented, which are classified and discussed here. Furthermore, the overview includes techniques for accelerating the rendering of static scenes or scenes with animations and/or dynamic lighting\neffects. The advantages and drawbacks of the different approaches are illuminated, and unsolved problems and roads for further research are shown.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 808, "image_height": 609, "name": "jeschke-05-ISTAR-image.jpg", "type": "image/jpeg", "size": 126171, "path": "Publication:jeschke-05-ISTAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 356, 193, 190 ], "booktitle": "EUROGRAPHICS 2005 State of the Art Reports", "date_from": "2005-08-29", "date_to": "2005-09-02", "editor": "Y. Chrysanthou and M. Magnor", "location": "Dublin, Ireland", "organization": "EUROGRAPHICS", "pages_from": "1", "pages_to": "20", "publisher": "The Eurographics Association and The Image Synthesis Group", "research_areas": [ "Rendering" ], "keywords": [ "Impostors", "Display Algorithms", "Three Dimensional Graphics and Realism", "Color, Shading, Shadowing and Texture" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 808, "image_height": 609, "name": "jeschke-05-ISTAR-image.jpg", "type": "image/jpeg", "size": 126171, "path": "Publication:jeschke-05-ISTAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "jeschke-05-ISTAR-Paper.pdf", "type": "application/pdf", "size": 4805329, "path": "Publication:jeschke-05-ISTAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/jeschke-05-ISTAR-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "Treelumination" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ISTAR/", "__class": "Publication" }, { "id": "bruckner-2005-vid", "type_id": "misc", "tu_id": null, "repositum_id": null, "title": "VolumeShop: Interactive Direct Volume Illustration", "date": "2005-08", "abstract": "Illustrations play a major role in the education process. Whether used to teach a surgical or radiologic procedure, to illustrate normal or aberrant anatomy, or to explain the functioning of a technical device, illustration significantly impacts learning. Many specimen are readily available as volumetric data sets, particular in medicine. Illustrations, however, are commonly produced manually as static images in a time-consuming process. Our goal is to create a fully dynamic three-dimensional illustration environment which directly operates on volume data. Single images have the aesthetic appeal of traditional illustrations, but can be interactively altered and explored. We present methods to realize such a system which combines artistic visual styles and expressive visualization techniques. Our implementation exploits the latest generation of GPUs and, thus, is capable of handling commonly sized data sets at interactive frame rates. ", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 776, "image_height": 848, "name": "bruckner-2005-vid-image.jpg", "type": "image/jpeg", "size": 92873, "path": "Publication:bruckner-2005-vid", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 161, 171, 166 ], "booktitle": "ACM Siggraph 2005 DVD Proceedings (Technical Sketch)", "date_from": "2005-07-31", "date_to": "2005-08-04", "lecturer": [ 161 ], "location": "Los Angeles, USA", "research_areas": [], "keywords": [ "focus+context techniques", "volume rendering", "illustrative techniques" ], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 776, "image_height": 848, "name": "bruckner-2005-vid-image.jpg", "type": "image/jpeg", "size": 92873, "path": "Publication:bruckner-2005-vid", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-image:thumb{{size}}.png" }, { "description": "", "filetitle": "Sketch", "main_file": true, "use_in_gallery": false, "access": "public", "name": "bruckner-2005-vid-Sketch.pdf", "type": "application/pdf", "size": 512165, "path": "Publication:bruckner-2005-vid", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-Sketch.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/bruckner-2005-vid-Sketch:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-vid/", "__class": "Publication" }, { "id": "zambal-2005-3dact", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "3D Active Appearance Models for Segmentation of Cardiac MRI Data", "date": "2005-08", "abstract": "Segmentation of volumetric medical data is extremely time-consuming if done manually.\r\nThis is the reason why currently great efforts are being made to develop algorithms\r\nfor automatic segmentation. Model based techniques represent one very\r\npromising approach. A model representing the object of interest is matched with\r\nunknown data. During the matching process the model’s shape and additional properties\r\nare varied in order to iteratively improve the match. As soon as the model fits\r\nsufficiently well to the data, the properties of the model can be mapped to the data\r\nand so a segmentation is derived.\r\nRecently the segmentation of cardiac magnetic resonance images (MRI) has\r\nbeen of great interest. In this work we outline some of the methods proposed to\r\nsolve the problem of cardiac segmentation. We review Active Appearance Models\r\n(AAMs) which are a special type of deformable models. AAMs rule changes in\r\nshape and texture using statistical information obtained from a data base of representative\r\nexamples. We describe the theory behind AAMs with special focus on 3D\r\nAAMs. These are applicable to volumetric medical image data. Our implementation\r\nof 3D AAMs is outlined and the results obtained for 3D segmentation of the\r\nleft cardiac ventricle are presented.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 359, "image_height": 319, "name": "zambal-2005-3dact-image.jpg", "type": "image/jpeg", "size": 42227, "path": "Publication:zambal-2005-3dact", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 498 ], "supervisor": [ 187, 231, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 359, "image_height": 319, "name": "zambal-2005-3dact-image.jpg", "type": "image/jpeg", "size": 42227, "path": "Publication:zambal-2005-3dact", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "zambal-2005-3dact-PDF.pdf", "type": "application/pdf", "size": 11379548, "path": "Publication:zambal-2005-3dact", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/zambal-2005-3dact-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zambal-2005-3dact/", "__class": "Publication" }, { "id": "matkovic-2005-multi", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Interactive Visual Analysis of Multi-Parameter Families of Function Graphs", "date": "2005-07", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 368, "image_height": 391, "name": "matkovic-2005-multi-image.jpg", "type": "image/jpeg", "size": 33648, "path": "Publication:matkovic-2005-multi", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 235, 580, 756, 585, 176 ], "booktitle": "Proceedings of 3rd International Conference on Coordinated & Multiple Views in Exploratory Visualization 2005", "date_to": "2005-07-05", "lecturer": [ 756 ], "location": "London, UK", "publisher": "IEEE Computer Society", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 368, "image_height": 391, "name": "matkovic-2005-multi-image.jpg", "type": "image/jpeg", "size": 33648, "path": "Publication:matkovic-2005-multi", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "matkovic-2005-multi-PDF.pdf", "type": "application/pdf", "size": 2928600, "path": "Publication:matkovic-2005-multi", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/matkovic-2005-multi-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-multi/", "__class": "Publication" }, { "id": "TR-186-2-05-05", "type_id": "techreport", "tu_id": null, "repositum_id": null, "title": "Computational Color Harmony based on Coloroid System", "date": "2005-06", "abstract": "The paper presents experimentally based rules and methods creating harmonic color sets. Firstly, dichromatic rules will be presented which concern color harmony relationships of only two hues. For an arbitrarily given hue pair, we define the textit{just harmonic} saturation values, resulting in just harmonic color pairs. These values express the fuzzy border between harmony and disharmony regions by a single scalar, most appropriately. \n\nSecondly, the value of harmony will be defined corresponding to the textit{contrast of lightness}, i.e. the difference of perceptual lightness values. \nThirdly, we formulate the harmony value of the textit{saturation contrast}, depending on hue and lightness. Results of these investigations form a basis for a unified, \ncoherent dichromatic harmony formula as well as for analysis of polychromatic color harmony. \n\nIntroduced color harmony rules are based on Coloroid, which is one of the $5-6$ main color-order systems and furthermore it is an textit{aesthetically uniform} continuous color space. \nColoroid has simple closed forward and backward transformation formulas with the color space of $CIE~XYZ$. It relies on a huge number of observations and experiments, and it is a very suitable tool of color dynamics for describing aesthetical relationships. \nIt had supported also numerous color plans of great architectural projects \nhaving been realized in the practice. \nThe experimental data and information to be retrieved from them are \njust partly processed and published so far. Our article utilizes a 'slice' of this database, \ntogether with additional complementary observations. \nThis paper is an issue of a planned series of articles, dealing with rules and coherences of color harmony based on the Coloroid system. ", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 443, "image_height": 458, "name": "TR-186-2-05-05-image.jpg", "type": "image/jpeg", "size": 53934, "path": "Publication:TR-186-2-05-05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 177, 496, 232 ], "number": "TR-186-2-05-05", "research_areas": [], "keywords": [ "Color Dynamics", "Computational Aesthetics", "Coloroid", "Color Order System", "Color Harmony", "Environmental Color Design" ], "weblinks": [], "files": [ { "description": null, "filetitle": "Computational Color Harmony", "main_file": true, "use_in_gallery": false, "access": "public", "preview_image_width": 600, "preview_image_height": 600, "name": "TR-186-2-05-05-Computational Color Harmony.pdf", "type": "application/pdf", "size": 7263941, "path": "Publication:TR-186-2-05-05", "preview_name": "TR-186-2-05-05-Computational Color Harmony:preview.png", "preview_type": "image/jpeg", "preview_size": 227752, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-Computational Color Harmony.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-Computational Color Harmony:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 443, "image_height": 458, "name": "TR-186-2-05-05-image.jpg", "type": "image/jpeg", "size": 53934, "path": "Publication:TR-186-2-05-05", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/TR-186-2-05-05-image:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/TR-186-2-05-05/", "__class": "Publication" }, { "id": "phd-viola", "type_id": "phdthesis", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Expressive Visualization", "date": "2005-06", "abstract": "In this thesis several expressive visualization techniques for volumetric\r\ndata are presented. The key idea is to classify the underlying data according\r\nto its prominence on the resulting visualization by importance value.\r\nThe importance property drives the visualization pipeline to emphasize the most prominent features and to suppress the less relevant ones. The suppression can be realized globally, so the whole object is suppressed, or locally. A local modulation generates cut-away and ghosted views because the suppression of less relevant features occurs only on the part where the occlusion of more important features appears.\r\n\r\nFeatures within the volumetric data are classified according to a new dimension denoted as object importance. This property determines which structures should be readily discernible and which structures are less important. Next, for each feature various representations (levels of sparseness) from a dense to a sparse depiction are defined. Levels of\r\nsparseness define a spectrum of optical properties or rendering styles. The resulting image is generated by ray-casting and combining the intersected features proportional to their importance. An additional step\r\nto traditional volume rendering evaluates the areas of occlusion and assigns a particular level of sparseness. This step is denoted as importance compositing. Advanced schemes for importance compositing determine the resulting visibility of features and if the resulting visibility distribution does not correspond to the importance distribution different levels of sparseness are selected.\r\n\r\nThe applicability of importance-driven visualization is demonstrated on several examples from medical diagnostics scenarios, flow visualization,\r\nand interactive illustrative visualization.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1795, "image_height": 1512, "name": "phd-viola-image.jpg", "type": "image/jpeg", "size": 112390, "path": "Publication:phd-viola", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171 ], "date_end": "2005-06", "date_start": "2002-05", "supervisor": [ 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "Defense Presentation", "main_file": false, "use_in_gallery": false, "access": "public", "name": "phd-viola-Defense Presentation.pdf", "type": "application/pdf", "size": 1259949, "path": "Publication:phd-viola", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-Defense Presentation.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-Defense Presentation:thumb{{size}}.png" }, { "description": "", "filetitle": "Dissertation (print version)", "main_file": false, "use_in_gallery": false, "access": "public", "name": "phd-viola-Dissertation (print version).pdf", "type": "application/pdf", "size": 61930541, "path": "Publication:phd-viola", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-Dissertation (print version).pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-Dissertation (print version):thumb{{size}}.png" }, { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1795, "image_height": 1512, "name": "phd-viola-image.jpg", "type": "image/jpeg", "size": 112390, "path": "Publication:phd-viola", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-image:thumb{{size}}.png" }, { "description": "", "filetitle": "pdf (screen version)", "main_file": true, "use_in_gallery": false, "access": "public", "name": "phd-viola-pdf (screen version).pdf", "type": "application/pdf", "size": 9650433, "path": "Publication:phd-viola", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-pdf (screen version).pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/phd-viola-pdf (screen version):thumb{{size}}.png" } ], "projects_workgroups": [ "ADAPT" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/phd-viola/", "__class": "Publication" }, { "id": "neubauer-2005-vir", "type_id": "phdthesis", "tu_id": null, "repositum_id": null, "title": "Virtual Endoscopy for Preoperative Planning and Training of Endonasal Transsphenoidal Pituitary Surgery", "date": "2005-06", "abstract": "Virtual endoscopy is the navigation of a virtual camera through anatomy, computationally\r\nreconstructed from radiological data. Virtual endoscopy mimics physical minimally invasive\r\nsurgical activity and is used for diagnosis (e.g., the detection of colon polyps), planning\r\nof endoscopic interventions, postoperative assessment of surgical success and training for\r\ninexperienced endoscopists.\r\nThis thesis introduces STEPS, a virtual endoscopy system designed as a planning and training\r\ntool for endonasal transsphenoidal pituitary surgery, a method used to minimally invasively\r\nremove tumors of the pituitary gland. A rigid endoscope is inserted into the nose and\r\nadvanced through intracranial cavities towards the bony wall covering the pituitary gland.\r\nThis bone is then opened and the tumor is removed.\r\nSTEPS reconstructs the boundaries of the investigated cavities primarily using iso-surfacing\r\nin original CT data. Presegmented objects of interest can be added to the scene and displayed\r\nbehind the semi-transparent isosurface. These objects (e.g., the tumor, the pituitary\r\ngland and important blood vessels) provide an augmented picture of patient anatomy to\r\nguide the surgeon, aid in planning the endoscopic approach, and help the user find an ideal\r\nsite for actual surgical activity. Visual information can be further enhanced by display of\r\nrigid structures beyond the isosurface. The user can freely decide upon colors and lighting\r\nconditions.\r\nAll rendering techniques applied by STEPS are completely CPU-based, ensuring a high\r\namount of flexibility and hardware-independence. Nevertheless, rendering is efficient resulting\r\nin smooth interaction.\r\nSTEPS allows free navigation through the nasal and paranasal anatomy, but can also be used\r\nto simulate the movement parameters of the rigid endoscopes. This includes simulation of\r\nsurgical instruments and haptic feedback. Furthermore, STEPS allows the simulation of\r\nangled endoscopes and the simulation of barrel distortion as exhibited by real endoscope\r\noptics.\r\nThis thesis gives an overview about existing techniques and applications of virtual endoscopy,\r\nintroduces the field of application, and, in detail, describes STEPS, the required\r\npreprocessing, the rendering techniques and the user interface.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 838, "image_height": 296, "name": "neubauer-2005-vir-image.jpg", "type": "image/jpeg", "size": 41613, "path": "Publication:neubauer-2005-vir", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 497 ], "date_end": "2005-06", "date_start": "2003-04", "supervisor": [ 166, 231 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 838, "image_height": 296, "name": "neubauer-2005-vir-image.jpg", "type": "image/jpeg", "size": 41613, "path": "Publication:neubauer-2005-vir", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-image:thumb{{size}}.png" }, { "description": "", "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "neubauer-2005-vir-pdf.pdf", "type": "application/pdf", "size": 171063659, "path": "Publication:neubauer-2005-vir", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/neubauer-2005-vir-pdf:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/neubauer-2005-vir/", "__class": "Publication" }, { "id": "Artner-2005-Hig", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "High-Quality Volume Rendering with Resampling in the Frequency Domain", "date": "2005-06", "abstract": "This work introduces a volume rendering technique that is conceptually based on the shear-warp factorization.\r\nWe propose to perform the shear transformation entirely in the frequency domain. Unlike the standard shear-warp\r\nalgorithm, we allow for arbitrary sampling distances along the viewing rays, independent of the view direction.\r\nThe accurate scaling of the volume slices is achieved by using the zero padding interpolation property. Finally, a high quality gradient estimation scheme is presented which uses the derivative theorem of the Fourier transform.\r\nExperimental results have shown that the presented method outperforms established algorithms in the quality of\r\nthe produced images. If the data is sampled above the Nyquist rate the presented method is capable of a perfect\r\nreconstruction of the original function.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 511, "image_height": 511, "name": "Artner-2005-Hig-image.jpg", "type": "image/jpeg", "size": 49358, "path": "Publication:Artner-2005-Hig", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 456, 196, 171, 166 ], "booktitle": "Proceedings of EuroVis", "date_from": "2005-06-01", "date_to": "2005-06-03", "isbn": "3-905673-19-3", "lecturer": [ 456 ], "location": "Leeds, United Kingdom", "pages_from": "85", "pages_to": "92", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 511, "image_height": 511, "name": "Artner-2005-Hig-image.jpg", "type": "image/jpeg", "size": 49358, "path": "Publication:Artner-2005-Hig", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Artner-2005-Hig-Paper.pdf", "type": "application/pdf", "size": 471113, "path": "Publication:Artner-2005-Hig", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/Artner-2005-Hig-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Hig/", "__class": "Publication" }, { "id": "bittner-2005-egsr", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Fast Exact From-Region Visibility in Urban Scenes", "date": "2005-06", "abstract": "We present a fast exact from-region visibility algorithm for 2.5D\nurban scenes. The algorithm uses a hierarchical subdivision of\nline-space for identifying visibility interactions in a 2D\nfootprint of the scene. Visibility in the remaining vertical\ndimension is resolved by testing for the existence of lines\nstabbing sequences of virtual portals. Our results show that exact\nanalytic from-region visibility in urban scenes can be computed at\ntimes comparable or even superior to recent conservative methods. ", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1179, "image_height": 962, "name": "bittner-2005-egsr-image.jpg", "type": "image/jpeg", "size": 44941, "path": "Publication:bittner-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 198, 194, 193 ], "booktitle": "Rendering Techniques 2005 (Proceedings Eurographics Symposium on Rendering)", "date_from": "2005-06-29", "date_to": "2005-07-01", "editor": "Kavita Bala and Philip Dutré", "isbn": "3-905673-23-1", "lecturer": [ 198 ], "location": "Konstanz, Germany", "organization": "Eurographics", "pages_from": "223", "pages_to": "230", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [ "real-time rendering", "visibility" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1179, "image_height": 962, "name": "bittner-2005-egsr-image.jpg", "type": "image/jpeg", "size": 44941, "path": "Publication:bittner-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "bittner-2005-egsr-Paper.pdf", "type": "application/pdf", "size": 3449376, "path": "Publication:bittner-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/bittner-2005-egsr-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "UrbanViz", "GameTools" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bittner-2005-egsr/", "__class": "Publication" }, { "id": "Viola-05-Smart", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Smart Visibility in Visualization", "date": "2005-05", "abstract": "In this paper we discuss expressive visualization techniques that smartly uncover the most important information\r\nin order to maximize the visual information of the underlying data. This is achieved through dynamic change in visual representations, through deformations, or through changing the spatial position of parts of the data. Such techniques originate from technical illustration and are called cut-away views, ghosted views, and exploded views. These illustrative techniques unveil the most important visual information by a high level of abstraction. The change in visual representation or spatial position is done in a way that is easily perceivable and the overall visual harmony is preserved.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 712, "image_height": 344, "name": "Viola-05-Smart-image.jpg", "type": "image/jpeg", "size": 29020, "path": "Publication:Viola-05-Smart", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171, 166 ], "booktitle": "Proceedings of EG Workshop on Computational Aesthetics Computational Aesthetics in Graphics, Visualization and Imaging", "date_from": "2005-05-18", "date_to": "2005-05-20", "editor": "L. Neumann, M. Sbert, B. Gooch, W. Purgathofer", "isbn": "3905673274", "lecturer": [ 171 ], "location": "Girona, Spain", "pages_from": "209", "pages_to": "216", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 712, "image_height": 344, "name": "Viola-05-Smart-image.jpg", "type": "image/jpeg", "size": 29020, "path": "Publication:Viola-05-Smart", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Viola-05-Smart-Paper.pdf", "type": "application/pdf", "size": 3785392, "path": "Publication:Viola-05-Smart", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/Viola-05-Smart-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-05-Smart/", "__class": "Publication" }, { "id": "lneumann-2005-cch", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Computational Color Harmony based on Coloroid System", "date": "2005-05", "abstract": "This paper presents experimentally based rules and methods for the creation of harmonic color sets. First, dichromatic\r\nrules are presented which concern the harmony relationships of two hues. For an arbitrarily given hue pair,\r\nwe de\u0002ne the just harmonic saturation values, resulting in minimally harmonic color pairs. These values express\r\nthe fuzzy border between harmony and disharmony regions using a single scalar.\r\nSecond, the value of harmony is de\u0002ned corresponding to the contrast of lightness, i.e. the difference of perceptual\r\nlightness values. Third, we formulate the harmony value of the saturation contrast, depending on hue and lightness.\r\nThe results of these investigations form a basis for a uni\u0002ed, coherent dichromatic harmony formula as well as for\r\nanalysis of polychromatic color harmony.\r\nIntroduced color harmony rules are based on Coloroid, which is one of the 5", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 177, "image_height": 169, "name": "lneumann-2005-cch-image.jpg", "type": "image/jpeg", "size": 32185, "path": "Publication:lneumann-2005-cch", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 177, 496, 232 ], "booktitle": "Computational Aesthetics in Graphics, Visualization and Imaging 2005", "date_from": "2005-05-18", "date_to": "2005-05-20", "editor": "L. Neumann, M. Sbert, B. Gooch, W. Purgathofer", "isbn": "3905673274", "lecturer": [ 177 ], "location": "Girona, Spain", "pages_from": "231", "pages_to": "240", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 177, "image_height": 169, "name": "lneumann-2005-cch-image.jpg", "type": "image/jpeg", "size": 32185, "path": "Publication:lneumann-2005-cch", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "lneumann-2005-cch-PDF.pdf", "type": "application/pdf", "size": 14403655, "path": "Publication:lneumann-2005-cch", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/lneumann-2005-cch-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cch/", "__class": "Publication" }, { "id": "wilkie-2005-sco", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Spectral Colour Order Systems and Appearance Metrics for Fluorescent Solid Colours", "date": "2005-05", "abstract": "One aspect of Computational Aesthetics is the finding of harmonic colours for the objects in a scene. Although the\r\nobtained degree of colour harmony is a subjective criterion, experience shows that on average human observers\r\ntend to have quite similar responses to individual colour stimuli and their combinations. This observation is the\r\nbasis for what is commonly referred to as Colour Order Systems (COS), which aim to arrange colours in a fashion\r\nsuch that users can intuitively select individual colours – or even whole sets of them – according to some criterion.\r\nHowever, when dealing with a spectral rendering system, the use of traditional colour space COS to obtain pleasant\r\nassociations of colours becomes impossible, principally due to metamerism. An interesting problem would be\r\nthe derivation of a COS for spectral data which includes the ability to deal with fluorescent colours, the indirect\r\ngoal of such a metric system being the selection of aesthetically pleasing colour values for a spectral renderer.\r\nCategories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional\r\nGraphics and Realism: Color", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 200, "image_height": 117, "name": "wilkie-2005-sco-image.jpg", "type": "image/jpeg", "size": 20433, "path": "Publication:wilkie-2005-sco", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 192, 593, 190 ], "booktitle": "Proceedings of Computational Aesthetics in Graphics, Visualization and Imaging", "date_from": "2005-05-18", "date_to": "2005-05-20", "editor": "L. Neumann, M. Sbert, B. Gooch, W. Purgathofer", "lecturer": [ 192 ], "location": "Girona, Spain", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "name": "wilkie-2005-sco-.pdf", "type": "application/pdf", "size": 597441, "path": "Publication:wilkie-2005-sco", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 200, "image_height": 117, "name": "wilkie-2005-sco-image.jpg", "type": "image/jpeg", "size": 20433, "path": "Publication:wilkie-2005-sco", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/wilkie-2005-sco-image:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/wilkie-2005-sco/", "__class": "Publication" }, { "id": "matkovic-2005-glo", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Global Contrast Factor-a New Approach to Image Contrast", "date": "2005-05", "abstract": "Contrast in image processing is usually de\u0002ned as a ratio between the darkest and the brightest spots of an image.\r\nIn this paper we introduce a different contrast de\u0002nition. The newly introduced Global Contrast Factor (GCF)\r\ncorresponds closer to the human perception of contrast. GCF uses contrasts at various resolution levels in order\r\nto compute overall contrast. Experiments were conducted in order to \u0002nd weight factors needed to calculate GCF.\r\nGCF measures richness of detail as perceived by a human observer, and as such can be used in various application\r\nareas like rendering, tone mapping, volume visualization, and lighting design", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 210, "image_height": 327, "name": "matkovic-2005-glo-image.jpg", "type": "image/jpeg", "size": 40112, "path": "Publication:matkovic-2005-glo", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 235, 177, 232, 26, 190 ], "booktitle": "Computational Aesthetics in Graphics, Visualization and Imaging 2005", "date_from": "2005-05-18", "date_to": "2005-05-20", "editor": "L. Neumann, M. Sbert, B. Gooch, W. Purgathofer", "isbn": "3905673274", "lecturer": [ 190 ], "location": "Girona, Spain", "pages_from": "159", "pages_to": "168", "publisher": "Eurographics Association", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 210, "image_height": 327, "name": "matkovic-2005-glo-image.jpg", "type": "image/jpeg", "size": 40112, "path": "Publication:matkovic-2005-glo", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "matkovic-2005-glo-PDF.pdf", "type": "application/pdf", "size": 1339337, "path": "Publication:matkovic-2005-glo", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/matkovic-2005-glo-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-glo/", "__class": "Publication" }, { "id": "lneumann-2005-cst", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Color Style Transfer Techniques using Hue, Lightness and Saturation Histogram Matching", "date": "2005-05", "abstract": "We present new methods which transfer the color style of a source image into an arbitrary given target image\r\nhaving a different 3D color distribution. The color transfer has a high importance ensuring a wide area of applications\r\nfrom artistic transformation of the color atmosphere of images until different scientific visualizations using\r\nspecial gamut mappings.\r\nOur technique use a permissive, or optionally strict, 3D histogram matching, similarly to the sampling of multivariable\r\nfunctions applying a sequential chain of conditional probability density functions. We work by order\r\nof hue, hue dependent lightness and from both dependent saturation histograms of source and target images, respectively.\r\nWe apply different histogram transformations, like smoothing or contrast limitation, in order to avoid\r\nsome unexpected high gradients and other artifacts. Furthermore, we use dominance suppression optionally, by\r\napplying sub-linear functions for the histograms in order to get well balanced color distributions, or an overall\r\nappearance reflecting the memory color distribution better. Forward and inverse operations on the corresponding\r\ncumulative histograms ensure a continuous mapping of perceptual attributes correlating to limited derivatives.\r\nSampling an appropriate fraction of the pixels and using perceptually accurate and continuous histograms with\r\nminimal size as well as other gems make this method robust and fast.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 198, "image_height": 197, "name": "lneumann-2005-cst-image.jpg", "type": "image/jpeg", "size": 37923, "path": "Publication:lneumann-2005-cst", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 177, 232 ], "booktitle": "Computational Aesthetics in Graphics, Visualization and Imaging 2005", "date_from": "2005-05-18", "date_to": "2005-05-20", "editor": "L. Neumann, M. Sbert, B. Gooch, W. Purgathofer", "isbn": "3905673274", "lecturer": [ 177 ], "location": "Girona, Spain", "pages_from": "111", "pages_to": "122", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 198, "image_height": 197, "name": "lneumann-2005-cst-image.jpg", "type": "image/jpeg", "size": 37923, "path": "Publication:lneumann-2005-cst", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "lneumann-2005-cst-PDF.pdf", "type": "application/pdf", "size": 29728853, "path": "Publication:lneumann-2005-cst", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/lneumann-2005-cst-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/lneumann-2005-cst/", "__class": "Publication" }, { "id": "zotti-2005-kat", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Kalenderbauten? -- Zur astronomischen Ausrichtung der Kreisgrabenanlagen in Niederösterreich", "date": "2005-05", "abstract": "Eine Untersuchung von 28 neolithischen Kreisgrabenanlagen Niederösterreichs ergab, dass etwa ein Drittel der Anlagen nicht solaren, sondern stellaren Bezug hatte, wobei eine Ausrichtung zum Aufgang der Pleiaden und dem gleichzeitigen Untergang des Antares am häufigsten vorkommt. Der heliakische Aufgang der Pleiaden konnte als Beginn des bäuerlichen Jahres verwendet werden. \n\nAn investigation of 28 neolithic circular enclosures (Kreisgrabenanlagen) showed a frequent orientation of doorways towards the rising point of the Pleiades star cluster and the setting point of the star Antares. The heliacal rising of the Pleiades could be used as start signal for the agricultural year.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222 ], "address": "Horn, Wien", "booktitle": "Zeitreise Heldenberg: Geheimnisvolle Kreisgräben --- Niederösterreichische Landesausstellung 2005", "editor": "Falko Daim and Wolfgang Neubauer", "isbn": "3-85460-226-X", "number": "459", "pages_from": "75", "pages_to": "79", "publisher": "Verlag Berger", "series": "Katalog des NÖ Landesmuseums, Neue Folge", "research_areas": [], "keywords": [ "astronomische Orientierung", "Kreisgrabenanlagen", "Archäoastronomie" ], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-kat/", "__class": "Publication" }, { "id": "kastowski-2005-kat", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Drehscheibe des Sternenhimmels? Die Kreisgrabenanlage Immendorf", "date": "2005-05", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 577, 578, 480, 222 ], "address": "Horn, Wien", "booktitle": "Zeitreise Heldenberg: Geheimnisvolle Kreisgräben --- Niederösterreichische Landesausstellung 2005", "editor": "Falko Daim and Wolfgang Neubauer", "isbn": "3-85460-226-X", "number": "459", "pages_from": "80", "pages_to": "82", "publisher": "Verlag Berger", "series": "Katalog des NÖ Landesmuseums, Neue Folge", "research_areas": [], "keywords": [ "Kreisgrabenanlagen", "Archäoastronomie", "astronomische Orientierung" ], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/kastowski-2005-kat/", "__class": "Publication" }, { "id": "havran-2005-sccg", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "On Cross-Validation and Resampling of BRDF Data Measurements", "date": "2005-05", "abstract": "We discuss the validation of BTF data measurements by means used for\nBRDF measurements. First, we show how to apply the Helmholtz reciprocity\nand isotropy for a single data set. Second, we discuss a\ncross-validation for BRDF measurement data obtained from two different\nmeasurement setups, where the measurements are not calibrated or the\nlevel of accuracy is not known. We show the practical problems\nencountered and the solutions we have used to validate physical setup\nfor four material samples. We describe a novel coordinate system\nsuitable for resampling the BRDF data from one data set to another\ndata set. Further, we show how the perceptually uniform color space\nCIELab is used for cross-comparison of BRDF data measurements, which\nwere not calibrated.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 913, "image_height": 743, "name": "havran-2005-sccg-image.jpg", "type": "image/jpeg", "size": 84962, "path": "Publication:havran-2005-sccg", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 203, 232, 222, 190, 312 ], "booktitle": "Proceedings SCCG 2005", "date_from": "2005-05-12", "date_to": "2005-05-14", "lecturer": [ 203 ], "location": "Budmerice, Slovakia", "pages_from": "161", "pages_to": "168", "research_areas": [ "Rendering" ], "keywords": [ "reflectance function", "BRDF data acquisition", "BRDF data validation", "predictive rendering" ], "weblinks": [], "files": [ { "description": null, "filetitle": "", "main_file": true, "use_in_gallery": false, "access": "public", "name": "havran-2005-sccg-.pdf", "type": "application/pdf", "size": 2250090, "path": "Publication:havran-2005-sccg", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 913, "image_height": 743, "name": "havran-2005-sccg-image.jpg", "type": "image/jpeg", "size": 84962, "path": "Publication:havran-2005-sccg", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/havran-2005-sccg-image:thumb{{size}}.png" } ], "projects_workgroups": [ "realreflect" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-sccg/", "__class": "Publication" }, { "id": "bruckner-2005-ICV", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Illustrative Context-Preserving Volume Rendering", "date": "2005-05", "abstract": "In volume rendering it is very difficult to simultaneously visualize interior and exterior structures while preserving clear shape cues. Very transparent transfer functions produce cluttered images with many overlapping structures, while clipping techniques completely remove possibly important context information. In this paper we present a new model for volume rendering, inspired by techniques from illustration that provides a means of interactively inspecting the interior of a volumetric data set in a feature-driven way which retains context information. The context-preserving volume rendering model uses a function of shading intensity, gradient magnitude, distance to the eye point, and previously accumulated opacity to selectively reduce the opacity in less important data regions. It is controlled by two user-specified parameters. This new method represents an alternative to conventional clipping techniques, shares their easy and intuitive user control, but does not suffer from the drawback of missing context information. ", "authors_et_al": false, "substitute": null, "main_image": { "description": "Context-Preserving Volume Rendering of a human hand", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2048, "image_height": 2048, "name": "bruckner-2005-ICV-image.jpg", "type": "image/jpeg", "size": 346710, "path": "Publication:bruckner-2005-ICV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 161, 160, 162, 166 ], "booktitle": "Proceedings of EuroVis 2005", "lecturer": [ 161 ], "pages_from": "69", "pages_to": "76", "research_areas": [ "IllVis" ], "keywords": [ "non-photorealistic techniques", "focus+context techniques", "volume rendering" ], "weblinks": [], "files": [ { "description": "Context-Preserving Volume Rendering of a human hand", "filetitle": "Hand - DivX", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Hand - DivX.avi", "type": "video/x-msvideo", "size": 2492416, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Hand - DivX:preview.png", "preview_type": "image/png", "preview_size": 16073, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - DivX.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - DivX:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - DivX:video.mp4" }, { "description": "Context-Preserving Volume Rendering of a human hand", "filetitle": "Hand - Indeo", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Hand - Indeo.avi", "type": "video/x-msvideo", "size": 44419072, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Hand - Indeo:preview.png", "preview_type": "image/png", "preview_size": 16059, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - Indeo.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - Indeo:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Hand - Indeo:video.mp4" }, { "description": "Context-Preserving Volume Rendering of a human head", "filetitle": "Head - DivX", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Head - DivX.avi", "type": "video/x-msvideo", "size": 3397120, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Head - DivX:preview.png", "preview_type": "image/png", "preview_size": 11598, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - DivX.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - DivX:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - DivX:video.mp4" }, { "description": "Context-Preserving Volume Rendering of a human head", "filetitle": "Head - Indeo", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Head - Indeo.avi", "type": "video/x-msvideo", "size": 33721856, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Head - Indeo:preview.png", "preview_type": "image/png", "preview_size": 11647, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - Indeo.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - Indeo:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Head - Indeo:video.mp4" }, { "description": "Context-Preserving Volume Rendering of a human hand", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2048, "image_height": 2048, "name": "bruckner-2005-ICV-image.jpg", "type": "image/jpeg", "size": 346710, "path": "Publication:bruckner-2005-ICV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-image:thumb{{size}}.png" }, { "description": "Paper", "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "bruckner-2005-ICV-Paper.pdf", "type": "application/pdf", "size": 4121772, "path": "Publication:bruckner-2005-ICV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Paper:thumb{{size}}.png" }, { "description": "powerpoint slides of EuroVis 2005 presentation", "filetitle": "Slides", "main_file": false, "use_in_gallery": false, "access": "public", "name": "bruckner-2005-ICV-Slides.zip", "type": "application/x-zip", "size": 56685751, "path": "Publication:bruckner-2005-ICV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Slides.zip", "thumb_image_sizes": [] }, { "description": "comparison of Context-Preserving Volume Rendering with other techniques", "filetitle": "Tooth - DivX", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Tooth - DivX.avi", "type": "video/x-msvideo", "size": 892928, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Tooth - DivX:preview.png", "preview_type": "image/png", "preview_size": 13861, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - DivX.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - DivX:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - DivX:video.mp4" }, { "description": "comparison of Context-Preserving Volume Rendering with other techniques", "filetitle": "Tooth - Indeo", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Tooth - Indeo.avi", "type": "video/x-msvideo", "size": 17240576, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Tooth - Indeo:preview.png", "preview_type": "image/png", "preview_size": 13603, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - Indeo.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - Indeo:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Tooth - Indeo:video.mp4" }, { "description": "Context-Preserving Volume Rendering of the Visible Human dataset", "filetitle": "Visible Human - DivX", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Visible Human - DivX.avi", "type": "video/x-msvideo", "size": 3676160, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Visible Human - DivX:preview.png", "preview_type": "image/png", "preview_size": 17703, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - DivX.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - DivX:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - DivX:video.mp4" }, { "description": "Context-Preserving Volume Rendering of the Visible Human dataset", "filetitle": "Visible Human - Indeo", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 128, "preview_image_height": 128, "name": "bruckner-2005-ICV-Visible Human - Indeo.avi", "type": "video/x-msvideo", "size": 67943936, "path": "Publication:bruckner-2005-ICV", "preview_name": "bruckner-2005-ICV-Visible Human - Indeo:preview.png", "preview_type": "image/png", "preview_size": 17814, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - Indeo.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - Indeo:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/bruckner-2005-ICV-Visible Human - Indeo:video.mp4" } ], "projects_workgroups": [ "ADAPT" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ICV/", "__class": "Publication" }, { "id": "Grimm-thesis", "type_id": "phdthesis", "tu_id": null, "repositum_id": null, "title": "Real-Time Mono- and Multi-Volume Rendering of Large Medical Datasets on Standard PC Hardware", "date": "2005-04", "abstract": "Direct Volume Visualization is an efficient technique to explore complex structures within volumetric data. Its main advantage, compared to standard 3D surface rendering, is the ability to perform semitransparent rendering in order to provide more information about spatial relationships of different structures. Semitransparent rendering requires to process a huge amount of data. The size of volumetric data is rapidly increasing, on the one hand due to the boost of processing power in the past years, and on the other hand due to improved capabilities of newer acquisition devices. This large data presents a challenge to current rendering architectures and techniques. The enormous data sizes introduce a growing demand for interactive 3D visualization. Conventional slicing methods already reach their limit of usability due to the enormous amount of slices. 3D visualization is more and more explored as an attractive alternative additional method for examinations of large medical data to support the necessary 2D examination. Within this dissertation a set of approaches to handle and render large volumetric data is developed, enabling significant performance improvements due to a much better utilization of the CPUs processing power and available memory bandwidth. At first, highly efficient approaches for addressing and processing of a cache efficient memory layout for volumetric data are presented. These approaches serve as a base for a full-blown high-quality raycasting system, capable of handling large data up to 3GB, a limitation imposed by the virtual address space of current consumer operating systems. The core acceleration techniques of this system are a refined caching scheme for gradient estimation in conjunction with a hybrid skipping and removal of transparent regions to reduce the amount of data to be processed. This system is extended so that efficient processing of multiple large data sets is possible. An acceleration technique for direct volume rendering of scenes, composed of multiple volumetric objects, is developed; it is based on the distinction between regions of intersection, which need costly multi-volume processing, and regions containing only one volumetric object, which can be efficiently processed. Furthermore, V-Objects, a concept of modeling scenes consisting of multiple volumetric objects, are presented. It is demonstrated that the concept of V-Objects in combination with direct volume rendering, is a promising technique for visualizing medical data and can provide advanced means to explore and investigate data. In the second part of the dissertation, an alternative to grid-based volume graphics is presented: Vots, a point-based representation of volumetric data. It is a novel primitive for volumetric data modeling, processing, and rendering. A new paradigm is presented by moving the data representation from a discrete representation to an implicit one.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1063, "image_height": 1322, "name": "Grimm-thesis-image.jpg", "type": "image/jpeg", "size": 210021, "path": "Publication:Grimm-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 160 ], "date_end": "2005-04", "date_start": "2002-10", "supervisor": [ 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1063, "image_height": 1322, "name": "Grimm-thesis-image.jpg", "type": "image/jpeg", "size": 210021, "path": "Publication:Grimm-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-image:thumb{{size}}.png" }, { "description": "", "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Grimm-thesis-pdf.pdf", "type": "application/pdf", "size": 100359708, "path": "Publication:Grimm-thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/Grimm-thesis-pdf:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Grimm-thesis/", "__class": "Publication" }, { "id": "jeschke-05-AIP", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Automatic Impostor Placement for Guaranteed Frame Rates and Low Memory Requirements", "date": "2005-04", "abstract": "Impostors are image-based primitives commonly used to replace complex geometry in order to reduce the rendering time needed for displaying complex scenes. However, a big problem is the huge amount of memory required for impostors. \nThis paper presents an algorithm that automatically places impostors into a scene so that a desired frame rate and\nimage quality is always met, while at the same time not requiring enormous amounts of impostor memory. The low memory requirements are provided by a new placement method and through the simultaneous use of other acceleration techniques like visibility culling and geometric levels of detail.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 949, "image_height": 361, "name": "jeschke-05-AIP-image.jpg", "type": "image/jpeg", "size": 90640, "path": "Publication:jeschke-05-AIP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 356, 193, 357, 190 ], "booktitle": "Proceedings of ACM SIGGRAPH 2005 Symposium on Interactive 3D Graphics and Games", "date_from": "2005-04-03", "date_to": "2005-04-06", "isbn": "1-59593-013-2", "lecturer": [ 356 ], "location": "Washington DC", "organization": "ACM", "pages_from": "103", "pages_to": "110", "publisher": "ACM Press", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 949, "image_height": 361, "name": "jeschke-05-AIP-image.jpg", "type": "image/jpeg", "size": 90640, "path": "Publication:jeschke-05-AIP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "jeschke-05-AIP-Paper.pdf", "type": "application/pdf", "size": 1153371, "path": "Publication:jeschke-05-AIP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-Paper:thumb{{size}}.png" }, { "description": null, "filetitle": "Video", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 640, "preview_image_height": 480, "name": "jeschke-05-AIP-Video.mpg", "type": "video/mpv", "size": 47809988, "path": "Publication:jeschke-05-AIP", "preview_name": "jeschke-05-AIP-Video:preview.png", "preview_type": "image/jpeg", "preview_size": 5347, "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-Video.mpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-Video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/jeschke-05-AIP-Video:video.mp4" } ], "projects_workgroups": [ "Treelumination", "GameTools" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-AIP/", "__class": "Publication" }, { "id": "Wimmer-2005-HOQ", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Hardware Occlusion Queries Made Useful", "date": "2005-03", "abstract": "Hardware occlusion queries make it possible for an application to ask the 3D API whether or not any pixels would be drawn if a particular object was rendered. With this feature, applications can check to see whether or not the bounding boxes of complex objects are visible; if the bounds are occluded, the application\ncan skip drawing those objects. In this chapter, we present a simple and powerful algorithm to solve the problem of latency and CPU/GPU stall typically associated with a naive usage of hardware occlusion queries.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1920, "image_height": 1390, "name": "Wimmer-2005-HOQ-image.jpg", "type": "image/jpeg", "size": 719597, "path": "Publication:Wimmer-2005-HOQ", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Wimmer-2005-HOQ/Wimmer-2005-HOQ-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Wimmer-2005-HOQ/Wimmer-2005-HOQ-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 193, 198 ], "booktitle": "GPU Gems 2: Programming Techniques for High-Performance Graphics and General-Purpose Computation", "editor": "Matt Pharr and Randima Fernando", "isbn": "0-32133-559-7", "pages_from": "91", "pages_to": "108", "publisher": "Addison-Wesley", "research_areas": [ "Rendering" ], "keywords": [ "occlusion culling", "real-time rendering" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1920, "image_height": 1390, "name": "Wimmer-2005-HOQ-image.jpg", "type": "image/jpeg", "size": 719597, "path": "Publication:Wimmer-2005-HOQ", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Wimmer-2005-HOQ/Wimmer-2005-HOQ-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Wimmer-2005-HOQ/Wimmer-2005-HOQ-image:thumb{{size}}.png" } ], "projects_workgroups": [ "GameTools" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Wimmer-2005-HOQ/", "__class": "Publication" }, { "id": "jeschke-05-ARI", "type_id": "phdthesis", "tu_id": null, "repositum_id": null, "title": "Accelerating the Rendering Process Using Impostors", "date": "2005-03", "abstract": "The interactive rendering of three-dimensional geometric models is a research\narea of big interest in computer graphics. The generation of a fluent animation\nfor complex models, consisting of multiple million primitives, with more than\n60 frames per second is a special challenge. Possible applications include ship-,\ndriving- and flight simulators, virtual reality and computer games. Although the\nperformance of common computer graphics hardware has dramatically increased\nin recent years, the demand for more realism and complexity in common scenes\nis growing even faster.\nThis dissertation is about one approach for accelerating the rendering of such\ncomplex scenes. We take advantage of the fact that the appearance of distant scene\nparts hardly changes for several successive output images. Those scene parts are\nreplaced by precomputed image-based representations, so-called impostors. Impostors\nare very fast to render while maintaining the appearance of the scene part\nas long as the viewer moves within a bounded viewing region, a so-called view\ncell.\nHowever, unsolved problems of impostors are the support of a satisfying visual\nquality with reasonable computational effort for the impostor generation, as well\nas very high memory requirements for impostors for common scenes. Until today,\nthese problems are the main reason why impostors are hardly used for rendering\nacceleration.\nThis thesis presents two new impostor techniques that are based on partitioning\nthe scene part to be represented into image layers with different distances to\nthe observer. A new error metric allows a guarantee for a minimum visual quality\nof an impostor even for large view cells. Furthermore, invisible scene parts\nare efficiently excluded from the representation without requiring any knowledge\nabout the scene structure, which provides a more compact representation. One\nof the techniques combines every image layer separately with geometric information.\nThis allows a fast generation of memory-efficient impostors for distant scene\nparts. In the other technique, the geometry is independent from the depth layers,\nwhich allows a compact representation for near scene parts.\nThe second part of this work is about the efficient usage of impostors for a\ngiven scene. The goal is to guarantee a minimum frame rate for every view within\nthe scene while at the same time minimizing the memory requirements for all impostors.\nThe presented algorithm automatically selects impostors and view cells\nso that for every view, only the most suitable scene parts are represented as impostors.\nPrevious approaches generated numerous similar impostors for neighboring\nview cells, thus wasting memory. The new algorithm overcomes this problem.\ni\nThe simultaneous use of additional acceleration techniques further reduces the required\nimpostor memory and allows making best use of all available techniques\nat the same time. The approach is general in the sense that it can handle arbitrary\nscenes and a broad range of impostor techniques, and the acceleration provided\nby the impostors can be adapted to the bottlenecks of different rendering systems.\nIn summary, the provided techniques and algorithms dramatically reduce the\nrequired impostor memory and simultaneously guarantee a minimum output image\nquality. This makes impostors useful for numerous scenes and applications\nwhere they could hardly be used before.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1022, "image_height": 396, "name": "jeschke-05-ARI-image.jpg", "type": "image/jpeg", "size": 115393, "path": "Publication:jeschke-05-ARI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 356 ], "co_supervisor": [ 190 ], "date_end": "2005", "date_start": "2002", "supervisor": [ 357 ], "research_areas": [ "Rendering" ], "keywords": [ "image-based rendering", "impostors", "rendering acceleration" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1022, "image_height": 396, "name": "jeschke-05-ARI-image.jpg", "type": "image/jpeg", "size": 115393, "path": "Publication:jeschke-05-ARI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-image:thumb{{size}}.png" }, { "description": null, "filetitle": "pdf", "main_file": true, "use_in_gallery": false, "access": "public", "name": "jeschke-05-ARI-pdf.pdf", "type": "application/pdf", "size": 2495559, "path": "Publication:jeschke-05-ARI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/jeschke-05-ARI-pdf:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/jeschke-05-ARI/", "__class": "Publication" }, { "id": "zotti-2005-lum", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Approximating Real-World Luminaires with OpenGL Lights", "date": "2005-02", "abstract": "Dynamic illumination in real-time applications using OpenGL is still usually done with the classical light forms of point lights, directional\n lights and spot lights. For applications simulating real-world\n scenes, e.g. architectural planning, finding parameter sets for\n these simple lights to match real-world luminaires is required for\n realistic work. This paper describes a simple approach to\n process a luminaire data file in IESNA IES-LM63-95 format to create\n an approximation using at most 2 OpenGL lights to represent one\n luminaire.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1072, "image_height": 860, "name": "zotti-2005-lum-image.jpg", "type": "image/jpeg", "size": 140201, "path": "Publication:zotti-2005-lum", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222, 232, 190 ], "address": "Plzen", "booktitle": "WSCG 2005 Short Paper Proceedings", "date_from": "2005-02-01", "date_to": "2005-02-03", "editor": "Vaclav Skala", "isbn": "80-903100-9-5", "location": "Plzen", "note": "only on conference CD-ROM", "organization": "University of West Bohemia", "pages_from": "49", "pages_to": "52", "publisher": "UNION press", "research_areas": [ "Rendering" ], "keywords": [ "interactive illumination planning", "OpenGL", "Real-world luminaires" ], "weblinks": [], "files": [ { "description": null, "filetitle": "", "main_file": true, "use_in_gallery": false, "access": "public", "name": "zotti-2005-lum-.pdf", "type": "application/pdf", "size": 561509, "path": "Publication:zotti-2005-lum", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1072, "image_height": 860, "name": "zotti-2005-lum-image.jpg", "type": "image/jpeg", "size": 140201, "path": "Publication:zotti-2005-lum", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/zotti-2005-lum-image:thumb{{size}}.png" } ], "projects_workgroups": [ "realreflect" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-lum/", "__class": "Publication" }, { "id": "Artner-2005-Thesis", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "High-Quality Volume Rendering with Resampling in the Frequency Domain", "date": "2005-01", "abstract": "This thesis introduces a volume rendering technique that is conceptually based on the shearwarp factorization. The novelty in our approach is that we perform the shear transformation entirely in the frequency domain. A compensation for the direction dependent sampling distance along the viewing rays, which is present in the standard shear-warp approach, is developed. This compensation is also carried out in the frequency domain and is capable of producing freely selectable sampling distances. The accurate scaling of the volume slices is achieved by using the zero padding interpolation property. Finally, a high quality gradient estimation scheme is presented which uses the derivative theorem of the Fourier transform. Experimental trials have shown that the presented method can outperform established algorithms in the quality of the resulting images. Especially in the case when the dataset was acquired according to the sampling theorem, the presented method is capable of a perfect reconstruction of the original function.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 580, "image_height": 540, "name": "Artner-2005-Thesis-image.jpg", "type": "image/jpeg", "size": 60156, "path": "Publication:Artner-2005-Thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 456 ], "note": "1", "supervisor": [ 196, 171, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 580, "image_height": 540, "name": "Artner-2005-Thesis-image.jpg", "type": "image/jpeg", "size": 60156, "path": "Publication:Artner-2005-Thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Thesis", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Artner-2005-Thesis-Thesis.pdf", "type": "application/pdf", "size": 11287788, "path": "Publication:Artner-2005-Thesis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-Thesis.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/Artner-2005-Thesis-Thesis:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Artner-2005-Thesis/", "__class": "Publication" }, { "id": "viola-2005-imp", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Feature Enhancement in Volume Visualization", "date": "2005", "abstract": "This paper presents importance-driven feature enhancement as a technique for the automatic generation of cut-away and ghosted views out of volumetric data. The presented focus+context approach removes or suppresses less important parts of a scene to reveal more important underlying information. however, less important parts are fully visible in those regions, where important visual information is not lost, i.e., more relevant features are not occluded.\r\nFeatures within the volumetric data are first classified according to a new dimension denoted as object importance.\r\nThis property determines which structures should be readily discernible and which structures are less important.\r\nNext, for each feature various representations (levels of sparseness) from a dense to a sparse depiction are defined. Levels of sparseness define a spectrum of optical properties or rendering styles. The resulting image is generated by ray-casting and combining the intersected features proportional to their importance (importance compositing).\r\nThe paper includes an extended discussion on several possible schemes for levels of sparseness specification. Furthermore different approaches to importance compositing are treated.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1795, "image_height": 1512, "name": "viola-2005-imp-image.jpg", "type": "image/jpeg", "size": 112390, "path": "Publication:viola-2005-imp", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171, 162, 166 ], "journal": "IEEE Transactions on Visualization and Computer Graphics", "number": "4", "pages_from": "408", "pages_to": "418", "volume": "11", "research_areas": [], "keywords": [ "non-photorealistic techniques", "view-dependent visualization", "volume rendering", "focus+context techniques", "level-of-detail techniques" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1795, "image_height": 1512, "name": "viola-2005-imp-image.jpg", "type": "image/jpeg", "size": 112390, "path": "Publication:viola-2005-imp", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-image:thumb{{size}}.png" }, { "description": null, "filetitle": "paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "viola-2005-imp-paper.pdf", "type": "application/pdf", "size": 36884028, "path": "Publication:viola-2005-imp", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/viola-2005-imp-paper:thumb{{size}}.png" } ], "projects_workgroups": [ "ADAPT" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/viola-2005-imp/", "__class": "Publication" }, { "id": "Selig_2005_WRO", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "Forest Rendering in Ogre", "date": "2005", "abstract": "Efficient implementation of forest rendering in Ogre3D.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "Wald_in_Ogre", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 800, "image_height": 600, "name": "Selig_2005_WRO-Wald_in_Ogre.jpg", "type": "image/jpeg", "size": 250003, "path": "Publication:Selig_2005_WRO", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Selig_2005_WRO/Selig_2005_WRO-Wald_in_Ogre.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Selig_2005_WRO/Selig_2005_WRO-Wald_in_Ogre:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 620 ], "supervisor": [ 618, 356, 326 ], "research_areas": [], "keywords": [ "Forest", "Ogre3D" ], "weblinks": [], "files": [ { "description": "", "filetitle": "Wald_in_Ogre", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 800, "image_height": 600, "name": "Selig_2005_WRO-Wald_in_Ogre.jpg", "type": "image/jpeg", "size": 250003, "path": "Publication:Selig_2005_WRO", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Selig_2005_WRO/Selig_2005_WRO-Wald_in_Ogre.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Selig_2005_WRO/Selig_2005_WRO-Wald_in_Ogre:thumb{{size}}.png" } ], "projects_workgroups": [ "Treelumination" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Selig_2005_WRO/", "__class": "Publication" }, { "id": "Thurner-2005-IVR", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "Importance Driven Volume Rendering", "date": "2005", "abstract": "find all information here:\r\n\r\nhttp://www.cg.tuwien.ac.at/courses/projekte_old/vis/finished/FKleber/index.html", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 512, "image_height": 512, "name": "Thurner-2005-IVR-.jpg", "type": "image/jpeg", "size": 44913, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 602, 603 ], "supervisor": [ 171 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 512, "image_height": 512, "name": "Thurner-2005-IVR-.jpg", "type": "image/jpeg", "size": 44913, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-:thumb{{size}}.png" }, { "description": "Documentation of the API", "filetitle": "api-documentation", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-api-documentation.zip", "type": "application/x-zip", "size": 962960, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-api-documentation.zip", "thumb_image_sizes": [] }, { "description": "Windows Binaries in zip format", "filetitle": "binary", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-binary.zip", "type": "application/x-zip", "size": 430691, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-binary.zip", "thumb_image_sizes": [] }, { "description": "User Documentation", "filetitle": "documentation", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-documentation.pdf", "type": "application/pdf", "size": 646663, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-documentation.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-documentation:thumb{{size}}.png" }, { "description": "Masks", "filetitle": "masks", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-masks.zip", "type": "application/x-zip", "size": 12676, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-masks.zip", "thumb_image_sizes": [] }, { "description": "", "filetitle": "paper", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-paper.pdf", "type": "application/pdf", "size": 1656144, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-paper:thumb{{size}}.png" }, { "description": "Source Code", "filetitle": "source", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-source.zip", "type": "application/x-zip", "size": 8064157, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-source.zip", "thumb_image_sizes": [] }, { "description": "Datasets for testing Purpose", "filetitle": "testdata", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Thurner-2005-IVR-testdata.zip", "type": "application/x-zip", "size": 1696255, "path": "Publication:Thurner-2005-IVR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/Thurner-2005-IVR-testdata.zip", "thumb_image_sizes": [] } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Thurner-2005-IVR/", "__class": "Publication" }, { "id": "draeger-2005-chain", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "A ChainMail Algorithm for Direct Volume Deformation in Virtual Endoscopy Applications", "date": "2005", "abstract": "Endoscopy is an integral part of medical practice although the procedure is often unpleasant for the patient. Virtual endoscopy is a diagnosis tool which visualizes 3D image data sets to show a virtual view of the patient similar to the images generated by a traditional endoscopy. A virtualendoscopysystemcalledSTEPSwasdevelopedattheVRVistosimulatetranssphenoidal endonasal pituitary adenoma surgery. This thesis describes a deformation engine extending the STEPS application to enhance the realism. The two main contributions are the development of the Divod ChainMail algorithm, an algorithm for direct volume deformation based on the Chain- Mail and Enhanced ChainMail algorithms, and the integration of the engine into the existing STEPS. We use a Constrained Particle System to directly model and manipulate the volume data instead of modeling objects extracted from the volume data. We further proposes a simple interface to ease integration and enforce reusability of the software components. This thesis describes our Divod ChainMail algorithm, the interface and integration details, and provides timing results. Finally, it offers a discussion of the presented methods pointing out possible improvements and further work.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1050, "image_height": 988, "name": "draeger-2005-chain-image.jpg", "type": "image/jpeg", "size": 95385, "path": "Publication:draeger-2005-chain", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 490 ], "supervisor": [ 231, 497, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1050, "image_height": 988, "name": "draeger-2005-chain-image.jpg", "type": "image/jpeg", "size": 95385, "path": "Publication:draeger-2005-chain", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "draeger-2005-chain-PDF.pdf", "type": "application/pdf", "size": 3119341, "path": "Publication:draeger-2005-chain", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/draeger-2005-chain-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/draeger-2005-chain/", "__class": "Publication" }, { "id": "diss-thesis-siegen", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Expressive Visualization", "date": "2005", "abstract": "In this talk several expressive visualization techniques for volumetric data are presented. The key idea is to classify the underlying data according to its prominence on the resulting visualization by importance value. The importance property drives the visualization pipeline to emphasize the most prominent features and to suppress the less relevant ones. The suppression can be realized globally, so the whole object is suppressed, or locally. A local modulation generates cut-away and ghosted views because the suppression of less relevant features occurs only on the part where the occlusion of more important features appears.\n\nFeatures within the volumetric data are classified according to a new imension denoted as object importance. This property determines which structures should be readily discernible and which structures are less important. Next, for each feature various representations (levels of sparseness) from a dense to a sparse depiction are defined. Levels of sparseness define a spectrum of optical properties or rendering styles. The resulting image is generated by ray-casting and combining the intersected features proportional to their importance. An additional step to traditional volume rendering evaluates the areas of occlusion and assigns a particular level of sparseness. This step is denoted as importance compositing. Advanced schemes for importance compositing determine the resulting visibility of features and if the resulting visibility distribution does not correspond to the importance distribution different levels of sparseness are selected.\n\nThe applicability of importance-driven visualization is demonstrated\non several examples from medical diagnostics scenarios, flow visualization, and interactive illustrative visualization. ", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-siegen-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-siegen", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-siegen/diss-thesis-siegen-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-siegen/diss-thesis-siegen-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171 ], "date_from": "2005-11-11", "event": "Dissertation Thesis Report", "location": "University of Siegen, Germany", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-siegen-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-siegen", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-siegen/diss-thesis-siegen-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-siegen/diss-thesis-siegen-image:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-siegen/", "__class": "Publication" }, { "id": "Trenkwalder-2004-MAR", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "March", "date": "2005", "abstract": "Im Zuge des Praktikums soll der Marching Cubes Algorithmus in das vuVolume-Framework integriert werden. Um den Umfang eines Praktikums zu erreichen, sollen noch weitere Features rund um den Algorithmus implementiert werden. \r\n\r\nDetails:\r\nhttp://www.cg.tuwien.ac.at/courses/projekte_old/vis/finished/MTrenkwalder/index.html", "authors_et_al": false, "substitute": null, "main_image": { "description": "http://www.cg.tuwien.ac.at/courses/projekte/vis/finished/MTrenkwalder/index.html", "filetitle": "picture1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 836, "image_height": 722, "name": "Trenkwalder-2004-MAR-picture1.gif", "type": "image/gif", "size": 82411, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-picture1.gif", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-picture1:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 604 ], "supervisor": [ 162 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 973, "name": "Trenkwalder-2004-MAR-.gif", "type": "image/gif", "size": 559598, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-.gif", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-:thumb{{size}}.png" }, { "description": "Linux-Version des Programmes ", "filetitle": "binaries_linux", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Trenkwalder-2004-MAR-binaries_linux.gz", "type": "text/plain", "size": 779840, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-binaries_linux.gz", "thumb_image_sizes": [] }, { "description": "Win32-Version des Programmes zusammen mit allen benötigten DLLs", "filetitle": "binaries", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Trenkwalder-2004-MAR-binaries.zip", "type": "application/x-zip", "size": 6536015, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-binaries.zip", "thumb_image_sizes": [] }, { "description": "Die Projektdokumentation", "filetitle": "documentation", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Trenkwalder-2004-MAR-documentation.gz", "type": "text/plain", "size": 24825474, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-documentation.gz", "thumb_image_sizes": [] }, { "description": "http://www.cg.tuwien.ac.at/courses/projekte/vis/finished/MTrenkwalder/index.html", "filetitle": "picture1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 836, "image_height": 722, "name": "Trenkwalder-2004-MAR-picture1.gif", "type": "image/gif", "size": 82411, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-picture1.gif", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-picture1:thumb{{size}}.png" }, { "description": "Die Projektsourcen", "filetitle": "source", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Trenkwalder-2004-MAR-source.gz", "type": "text/plain", "size": 1419886, "path": "Publication:Trenkwalder-2004-MAR", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/Trenkwalder-2004-MAR-source.gz", "thumb_image_sizes": [] } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Trenkwalder-2004-MAR/", "__class": "Publication" }, { "id": "ulbricht-2005-VOP", "type_id": "otherreviewed", "tu_id": null, "repositum_id": null, "title": "Verification of Physically Based Rendering Algorithms", "date": "2005", "abstract": "Within computer graphics, the field of predictive rendering is concerned with those methods of image synthesis which yield results that do not only look real, but are also radiometrically correct renditions of nature, i.e. which are accurate predictions of what a real scene would look like under given lighting conditions. \r\n\r\nIn order to guarantee the correctness of the results obtained by such techniques, three stages of such a rendering system have to be verified with particular care: the light reflection models, the light transport simulation and the perceptually based calculations used at display time.\r\n\r\nIn this report, we will concentrate on the state of the art with respect to the second step in this chain. Various approaches for experimental verification of the implementation of a physically based rendering system have been proposed so far. However, the problem of proving that the results are correct is not fully solved yet, and no standardized methodology is available. We give an overview of existing literature, discuss the strengths and weaknesses of the described methods and illustrate the unsolved problems. We also briefly discuss the related issue of image quality metrics. ", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 1224, "name": "ulbricht-2005-VOP-image.jpg", "type": "image/jpeg", "size": 381703, "path": "Publication:ulbricht-2005-VOP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 225, 192, 190 ], "booktitle": "State of the Art Reports, Eurographics 05", "pages_from": "95", "pages_to": "112", "publisher": "The Eurographics Association, and The Image Synthesis Group", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 1224, "name": "ulbricht-2005-VOP-image.jpg", "type": "image/jpeg", "size": 381703, "path": "Publication:ulbricht-2005-VOP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-image:thumb{{size}}.png" }, { "description": "", "filetitle": "Verification_EG05_STAR", "main_file": true, "use_in_gallery": false, "access": "public", "name": "ulbricht-2005-VOP-Verification_EG05_STAR.pdf", "type": "application/pdf", "size": 11782457, "path": "Publication:ulbricht-2005-VOP", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-Verification_EG05_STAR.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/ulbricht-2005-VOP-Verification_EG05_STAR:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/ulbricht-2005-VOP/", "__class": "Publication" }, { "id": "diss-thesis-magdeburg", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Expressive Visualization", "date": "2005", "abstract": "In this talk several expressive visualization techniques for volumetric data are presented. The key idea is to classify the underlying data according to its prominence on the resulting visualization by importance value. The importance property drives the visualization pipeline to emphasize the most prominent features and to suppress the less relevant ones. The suppression can be realized globally, so the whole object is suppressed, or locally. A local modulation generates cut-away and ghosted views because the suppression of less relevant features occurs only on the part where the occlusion of more important features appears.\n\nFeatures within the volumetric data are classified according to a new imension denoted as object importance. This property determines which structures should be readily discernible and which structures are less important. Next, for each feature various representations (levels of sparseness) from a dense to a sparse depiction are defined. Levels of sparseness define a spectrum of optical properties or rendering styles. The resulting image is generated by ray-casting and combining the intersected features proportional to their importance. An additional step to traditional volume rendering evaluates the areas of occlusion and assigns a particular level of sparseness. This step is denoted as importance compositing. Advanced schemes for importance compositing determine the resulting visibility of features and if the resulting visibility distribution does not correspond to the importance distribution different levels of sparseness are selected.\n\nThe applicability of importance-driven visualization is demonstrated\non several examples from medical diagnostics scenarios, flow visualization, and interactive illustrative visualization. ", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-magdeburg-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-magdeburg", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-magdeburg/diss-thesis-magdeburg-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-magdeburg/diss-thesis-magdeburg-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171 ], "date_from": "2005-10-06", "event": "Dissertation Thesis Report", "location": "University of Magdeburg, Germany", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-magdeburg-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-magdeburg", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-magdeburg/diss-thesis-magdeburg-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-magdeburg/diss-thesis-magdeburg-image:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-magdeburg/", "__class": "Publication" }, { "id": "scharsach-2005-adv", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "Advanced Raycasting for Virtual Endoscopy on Consumer Graphics Hardware", "date": "2005", "abstract": "Volume rendering techniques for medical applications face a number of problems that\r\nrestrict the applicable techniques to a handful of established algorithms. Developing\r\na virtual endoscopy application further narrows the choice due to the very specific\r\ndemands of such a system.\r\nFirst, being able to move the viewpoint into the dataset and providing correct renderings\r\nincorporating the wide field of view optical endoscopy cameras usually deliver\r\nis a challenging task at a time when many of the available professional solutions like\r\nTeraRecon’s VolumePro boards are still restricted to orthogonal rendering. Second,\r\nthe extreme perspective distortion of the image leads to an amplification of visible\r\nsampling artefacts, making it necessary to employ special techniques to deal with\r\nthis problem.\r\nThird, highly interactive framerates are not a welcomed feature but an absolute\r\nnecessity, since the possible intra-operative environment makes immediate response\r\nto certain actions essential. And last, correct visualization and intersection of the\r\nendoscopic tools have to be ensured in order to provide the surgeon with an adequate\r\nrepresentation of the environment.\r\nIn the past, there has always been a trade-off between functionality, interactivity and\r\nhigh-quality renderings resulting in systems either being able to produce interactive\r\nvisualizations that lack the necessary detail and correctness of the representation, or\r\nhigh-quality renderings that have to be generated off-line in a tedious process that\r\nmakes real-time adaptations impossible.\r\nThis thesis presents an approach that attempts to meet all the demands on a virtual\r\nendoscopy system by creating a rendering framework that allows for interactive\r\nframerates for almost every possible dataset, quality setting and rendering mode.\r\nTo achieve this, a number of specialized techniques is incorporated that extend the\r\nbasic rendering pipeline in numerous ways.\r\nAs virtually all of the different approaches to real-time visualization of volume\r\ndatasets, raycasting on consumer graphics hardware faces its own problems and\r\npitfalls. This is why separate sections of this thesis are dedicated to solutions to\r\nthese problems that make the approach as versatile as possible.\r\nFinally, results and real-life images of the raycaster are presented, which is already\r\nused in medical practice in pre-operative planning for neuro-surgery.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 820, "image_height": 1002, "name": "scharsach-2005-adv-image.jpg", "type": "image/jpeg", "size": 102297, "path": "Publication:scharsach-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 491 ], "supervisor": [ 231, 226, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 820, "image_height": 1002, "name": "scharsach-2005-adv-image.jpg", "type": "image/jpeg", "size": 102297, "path": "Publication:scharsach-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "scharsach-2005-adv-PDF.pdf", "type": "application/pdf", "size": 34796689, "path": "Publication:scharsach-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/scharsach-2005-adv-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/scharsach-2005-adv/", "__class": "Publication" }, { "id": "bruckner-2005-AIV", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Applications of Illustrative Volume Visualization Techniques", "date": "2005", "abstract": "Illustrative visualization deals with computer supported interactive and expressive visualizations through abstractions which are\r\ninspired by traditional illustrations. This talk covers two important aspects of illustrative visualization of volume data: exploration and communication. Exploration deals with techniques for the rapid visualization of data with limited or no prior knowledge about the nature and/or structure of the data. Communication, on the other hand, is concerned with conveying complex structures or relationships to individuals. The talk discusses recent approaches in both areas.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 863, "name": "bruckner-2005-AIV-image.jpg", "type": "image/jpeg", "size": 120918, "path": "Publication:bruckner-2005-AIV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-AIV/bruckner-2005-AIV-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-AIV/bruckner-2005-AIV-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 161 ], "date_from": "2005-10-06", "date_to": "2005-10-06", "location": "Magdeburg, Germany", "research_areas": [], "keywords": [ "exploration", "illustrative visualization", "communication" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 863, "name": "bruckner-2005-AIV-image.jpg", "type": "image/jpeg", "size": 120918, "path": "Publication:bruckner-2005-AIV", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-AIV/bruckner-2005-AIV-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-AIV/bruckner-2005-AIV-image:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-AIV/", "__class": "Publication" }, { "id": "Viola-vistutillustrativevis", "type_id": "misc", "tu_id": null, "repositum_id": null, "title": "IEEE Visualization Tutorial on Illustrative Visualization", "date": "2005", "abstract": "The tutorial presents state-of-the-art visualization techniques inspired\nby traditional technical and medical illustrations. Such techniques\nexploit the perception of the human visual system and provide effective visual abstractions to make the visualization clearly understandable. Visual emphasis and abstraction has been used for expressive presentation from prehistoric paintings to nowadays scientific and medical illustrations. Many of the expressive techniques\nused in art are adopted in computer graphics, and are denoted as\nillustrative or non-photorealistic rendering. Different stroke techniques,\nor brush properties express a particular level of abstraction. Feature emphasis or feature suppression is achieved by combining different abstraction levels in illustrative rendering. Challenges in visualization research are very large data visualization as well as multi-dimensional data visualization. To effectively convey the most important visual information there is a significant need for visual abstraction. For less relevant information the dedicated image space is reduced to enhance more prominent features. The discussed techniques in the context of scientic visualization are based on iso-surfaces and volume rendering. Apart\nfrom visual abstraction, i.e., illustrative representation, the visibility of prominent features can be achieved by illustrative visualization\ntechniques such as cut-away views or ghosted views. The structures that occlude the most prominent information are suppressed in order to clearly see more interesting parts. A different smart way to provide information on the data is using exploded views or other\ntypes of deformation. Furthermore intuitive feature classification via 3D painting and manipulation with the classified data including label placement is presented. Discussed non-photorealistic and illustrative techniques from visualization and graphics are shown from the perspective as tools for illustrators from medicine, botany, archeology, and zoology. The limitations of existing NPR systems for science illustration are highlighted, and proposals for possible new directions are made.\nIllustrative visualization is demonstrated via application-specific tasks in medical visualization. An important aspect as compared to traditional medical illustrations is the interactivity and real-time manipulation of the acquired patient data. This can be very useful in anatomy education. Another application area is surgical planning which is demonstrated with two case studies: neck dissection and\nliver surgery planning.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 544, "image_height": 304, "name": "Viola-vistutillustrativevis-image.jpg", "type": "image/jpeg", "size": 63961, "path": "Publication:Viola-vistutillustrativevis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171, 166, 231, 226, 563, 564, 565, 566 ], "research_areas": [ "IllVis" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 544, "image_height": 304, "name": "Viola-vistutillustrativevis-image.jpg", "type": "image/jpeg", "size": 63961, "path": "Publication:Viola-vistutillustrativevis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Tutorial Notes HQ Version.pdf", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Viola-vistutillustrativevis-Tutorial Notes HQ Version.pdf.pdf", "type": "application/pdf", "size": 87682204, "path": "Publication:Viola-vistutillustrativevis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-Tutorial Notes HQ Version.pdf.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-Tutorial Notes HQ Version.pdf:thumb{{size}}.png" }, { "description": null, "filetitle": "Tutorial Notes Small Version", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Viola-vistutillustrativevis-Tutorial Notes Small Version.pdf", "type": "application/pdf", "size": 29076997, "path": "Publication:Viola-vistutillustrativevis", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-Tutorial Notes Small Version.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/Viola-vistutillustrativevis-Tutorial Notes Small Version:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Viola-vistutillustrativevis/", "__class": "Publication" }, { "id": "diss-thesis-bratislava", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Expressive Visualization", "date": "2005", "abstract": "In this talk several expressive visualization techniques for volumetric data are presented. The key idea is to classify the underlying data according to its prominence on the resulting visualization by importance value. The importance property drives the visualization pipeline to emphasize the most prominent features and to suppress the less relevant ones. The suppression can be realized globally, so the whole object is suppressed, or locally. A local modulation generates cut-away and ghosted views because the suppression of less relevant features occurs only on the part where the occlusion of more important features appears.\n\nFeatures within the volumetric data are classified according to a new imension denoted as object importance. This property determines which structures should be readily discernible and which structures are less important. Next, for each feature various representations (levels of sparseness) from a dense to a sparse depiction are defined. Levels of sparseness define a spectrum of optical properties or rendering styles. The resulting image is generated by ray-casting and combining the intersected features proportional to their importance. An additional step to traditional volume rendering evaluates the areas of occlusion and assigns a particular level of sparseness. This step is denoted as importance compositing. Advanced schemes for importance compositing determine the resulting visibility of features and if the resulting visibility distribution does not correspond to the importance distribution different levels of sparseness are selected.\n\nThe applicability of importance-driven visualization is demonstrated\non several examples from medical diagnostics scenarios, flow visualization, and interactive illustrative visualization. ", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-bratislava-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-bratislava", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-bratislava/diss-thesis-bratislava-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-bratislava/diss-thesis-bratislava-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171 ], "date_from": "2005-10-10", "event": "Dissertation Thesis Report", "location": "Comenius University Bratislava, Slovakia", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 416, "image_height": 451, "name": "diss-thesis-bratislava-image.jpg", "type": "image/jpeg", "size": 45104, "path": "Publication:diss-thesis-bratislava", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-bratislava/diss-thesis-bratislava-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-bratislava/diss-thesis-bratislava-image:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/diss-thesis-bratislava/", "__class": "Publication" }, { "id": "zotti-2005-ntt", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Zur astronomischen Interpretation ausgezeichneter Richtungen der Neolithischen Kreisgrabenanlagen Niederösterreichs", "date": "2005", "abstract": "Die Untersuchung der Tor-Orientierung von 28 jungsteinzeitlichen Kreisgrabenanlagen (4800-4500 v.Chr.) ergab durchwegs Ausrichtungen zu bestimmten Auf- und Untergangspunkten der Sonne (z.B. Sonnwenden) und 4 ausgewählter Sterne, denen kalendarische Bedeutung zuzuordnen ist.\r\n\r\n(Results from analysis of 28 Kreisgrabenanlagen indicate orientation of their access doorways towards certain rising and setting points of the sun and selected stars.)", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222 ], "date_from": "2005-05-07", "event": "9. Niederösterreichsches Teleskoptreffen", "location": "Gasthof Gaupmann, Ebenwaldhöhe, Kleinzell / NÖ", "research_areas": [], "keywords": [ "Archeo-astronomy", "Kreisgrabenanlagen" ], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-ntt/", "__class": "Publication" }, { "id": "xmas-2005", "type_id": "xmascard", "tu_id": null, "repositum_id": null, "title": "X-Mas 2005", "date": "2005", "abstract": "The card front shows a screenshot from \"Yetti's Skipark Tycoon\", one of the prize winners in this year's game development student course: Create your own ski resort & watch your happy guests being lifted up and ski down :-)\r\n\r\nThe back depicts the GameTools Project logo - one of the many projects the CG group at TU Vienna participates in (http://www.cg.tuwien.ac.at/projects). \t\r\n\r\nDie Vorderseite der Weihnachtskarte zeigt einen Screenshot aus \"Yetti's Skipark Tycoon\", einer der Gewinner der heurigen Computerspieleentwicklungslaboruebung: Bauen Sie Ihr eigenes Skiresort & schauen Sie Ihren Gaesten beim vergnuegten Skilauf zu :-)\r\n\r\nDie Rückseite ziert das GameTools Project Logo; GameTools ist eines der vielen Projekte, an denen die CG-Gruppe der TU Wien partizipiert (http://www.cg.tuwien.ac.at/projects).\r\nTU Wien - Computer Graphics Group\r\nMeisterhaft in Graphics\r\n\r\nIdea & Artwork: Markus Giegl", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1000, "image_height": 709, "name": "xmas-2005-image.png", "type": "image/png", "size": 1052917, "path": "Publication:xmas-2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/xmas-2005/xmas-2005-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/xmas-2005/xmas-2005-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 402 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1000, "image_height": 709, "name": "xmas-2005-image.png", "type": "image/png", "size": 1052917, "path": "Publication:xmas-2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/xmas-2005/xmas-2005-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/xmas-2005/xmas-2005-image:thumb{{size}}.png" } ], "projects_workgroups": [ "xmas" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/xmas-2005/", "__class": "Publication" }, { "id": "zotti-2005-NHM", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Der Himmel der Urzeit -- Zur astronomischen Interpretation der Himmelsscheibe im Kontext frühmitteleuropäischer Kulturen", "date": "2005", "abstract": "Vortrag im Rahmen der Ausstellung \"Der Geschmiedete Himmel\" zur Himmelsscheibe von Nebra im Naturhistorischen Museum Wien", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222 ], "date_from": "2005-12-07", "event": "Exhibition: Der Geschmiedete Himmel", "location": "Naturhistorisches Museum Wien", "research_areas": [], "keywords": [ "Archäoastronomie", "Himmelsscheibe von Nebra", "Archeo-astronomy", "Nebra Disk" ], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/zotti-2005-NHM/", "__class": "Publication" }, { "id": "bruckner-2005-ATI", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Abstraction Techniques for Interactive Illustration", "date": "2005", "abstract": "Illustrations play a major role in the education process. Whether used to teach a surgical or radiologic procedure, to illustrate normal or aberrant anatomy, or to explain the functioning of a technical device, illustration significantly impacts learning. One of the key concepts for creating an expressive illustration is abstraction. Abstraction introduces a distortion between the visualization and the underlying model according to the communicative intent of the illustration. Inspired by observations from hand-made illustrations, similar \r\ntechniques for the generation of rendered images have \r\nbeen developed. These techniques work on different levels: low level abstraction techniques (stylized \r\ndepiction methods) deal with how objects should be presented, while high level abstraction techniques (smart visibility approaches) are concerned with what should be \r\nvisible and recognizable. We review several existing approaches from both categories and describe important \r\nconcepts used in the design of a system for creating interactive illustrations directly from volumetric data.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 768, "name": "bruckner-2005-ATI-image.jpg", "type": "image/jpeg", "size": 55132, "path": "Publication:bruckner-2005-ATI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/bruckner-2005-ATI-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/bruckner-2005-ATI-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 161 ], "date_from": "2005-05-05", "date_to": "2005-05-10", "event": "Dagstuhl Seminar on Scientific Visualization: Challenges for the Future", "location": "Dagstuhl, Germany", "research_areas": [], "keywords": [ "illustration", "scientific visualization", "abstraction" ], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 768, "image_height": 768, "name": "bruckner-2005-ATI-image.jpg", "type": "image/jpeg", "size": 55132, "path": "Publication:bruckner-2005-ATI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/bruckner-2005-ATI-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/bruckner-2005-ATI-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Slides", "main_file": true, "use_in_gallery": false, "access": "public", "name": "bruckner-2005-ATI-Slides.zip", "type": "application/x-zip", "size": 42282180, "path": "Publication:bruckner-2005-ATI", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/bruckner-2005-ATI-Slides.zip", "thumb_image_sizes": [] } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/bruckner-2005-ATI/", "__class": "Publication" }, { "id": "groeller-2005-imp", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Image Generation in Scientific Visualization", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-08-18", "event": "Informatikkolloquium der Universität Bergen", "location": "Department of Informatics, University of Bergen, Norway", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-imp/", "__class": "Publication" }, { "id": "havran-2005-egsr", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Ray Maps for Global Illumination", "date": "2005", "abstract": "We describe a novel data structure for representing light transport called ray map. The ray map extends the concept\nof photon maps: it stores not only photon impacts but the whole photon paths. We demonstrate the utility of ray\nmaps for global illumination by eliminating boundary bias and reducing topological bias of density estimation in\nglobal illumination. Thanks to the elimination of boundary bias we could use ray maps for fast direct visualization\nwith the image quality being close to that obtained by the expensive nal gathering step. We describe in detail our\nimplementation of the ray map using a lazily constructed kD-tree. We also present several optimizations bringing\nthe ray map query performance close to the performance of the photon map.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 685, "image_height": 738, "name": "havran-2005-egsr-image.jpg", "type": "image/jpeg", "size": 67354, "path": "Publication:havran-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 203, 198, 576, 312 ], "booktitle": "Eurographics Symposium on Rendering", "pages_from": "43", "pages_to": "54", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 685, "image_height": 738, "name": "havran-2005-egsr-image.jpg", "type": "image/jpeg", "size": 67354, "path": "Publication:havran-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "havran-2005-egsr-Paper.pdf", "type": "application/pdf", "size": 4262551, "path": "Publication:havran-2005-egsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-Paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/havran-2005-egsr-Paper:thumb{{size}}.png" } ], "projects_workgroups": [ "GameTools" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/havran-2005-egsr/", "__class": "Publication" }, { "id": "haidacher-2005-MND", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "Multiscale Nodule Detection in CT Data", "date": "2005", "abstract": "In this paper I am describing a computer aided detection (CAD) method, which is able to detect lung nodules in medical data sets. The data sets are obtained by a high resolution computer tomography.\r\nThe goal of the nodule detection is to gain an early nodule detection which increases the probability of survival. Introduced method is able to detect nodules of variable size and variable shape. It is also rotation-invariant. The detection algorithm is based on the Hessian matrix. This matrix consists of the second-order partial derivatives. The eigenvalues of this matrix are used to determine the probability of\r\na nodule-like shape. This method is well adapted to detect nodules of a size larger than 4 mm diameter. Tests with synthetic nodule data sets and some real data sets provided a high probability of true nodule detection with a very low number of false positives per data set.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "picture", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 484, "image_height": 480, "name": "haidacher-2005-MND-picture.jpg", "type": "image/jpeg", "size": 71536, "path": "Publication:haidacher-2005-MND", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-picture.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-picture:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 597 ], "supervisor": [ 171 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "paper", "main_file": false, "use_in_gallery": false, "access": "public", "name": "haidacher-2005-MND-paper.pdf", "type": "application/pdf", "size": 741485, "path": "Publication:haidacher-2005-MND", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-paper:thumb{{size}}.png" }, { "description": "", "filetitle": "picture", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 484, "image_height": 480, "name": "haidacher-2005-MND-picture.jpg", "type": "image/jpeg", "size": 71536, "path": "Publication:haidacher-2005-MND", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-picture.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/haidacher-2005-MND-picture:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/haidacher-2005-MND/", "__class": "Publication" }, { "id": "gzotti-2005-krU", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Die Untersuchung keltisch-römischer Umgangstempel auf astronomische Orientierung", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 551, "image_height": 553, "name": "gzotti-2005-krU-.png", "type": "image/png", "size": 79927, "path": "Publication:gzotti-2005-krU", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/gzotti-2005-krU/gzotti-2005-krU-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/gzotti-2005-krU/gzotti-2005-krU-:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 222 ], "booktitle": "Der norisch-römische Kultplatz am Frauenberg", "editor": "St. Groh, H. Sedlmayer", "isbn": "2907303945", "journal": "Protohistoire européenne: Der norisch-römische Kultplatz am Frauenberg", "pages_from": "158", "pages_to": "168", "publisher": "éditions monique mergoil", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 551, "image_height": 553, "name": "gzotti-2005-krU-.png", "type": "image/png", "size": 79927, "path": "Publication:gzotti-2005-krU", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/gzotti-2005-krU/gzotti-2005-krU-.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/gzotti-2005-krU/gzotti-2005-krU-:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/gzotti-2005-krU/", "__class": "Publication" }, { "id": "groeller-2005-volg", "type_id": "book", "tu_id": null, "repositum_id": null, "title": "Volume Graphics 2005", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166, 590, 591, 592 ], "isbn": "3905673266", "pages": "243", "publisher": "Eurographics Association", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-volg/", "__class": "Publication" }, { "id": "groeller-2005-smar", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Smart Visibility in Illustrative Visualization", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-10-21", "event": "Informatikkolloquium der Simon Fraser Universität", "location": "Simon Fraser University, Vancouver, Canada", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-smar/", "__class": "Publication" }, { "id": "groeller-2005-sma", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Smart Visibility in Illustrative Visualization", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-10-12", "event": "Biomedizinisches Kolloquium der TU Eindhoven", "location": "Department of Biomedical Engineering, Technische Universiteit Eindhoven, Netherlands", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-sma/", "__class": "Publication" }, { "id": "groeller-2005-proc", "type_id": "book", "tu_id": null, "repositum_id": null, "title": "Proceedings IEEE Visualization 2005", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 594, 166, 595 ], "isbn": "0780394623", "pages": "??", "publisher": "IEEE", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-proc/", "__class": "Publication" }, { "id": "matkovic-2005-dyn", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Dynamic Texturing of Real Objects in an Augmented Reality System", "date": "2005", "abstract": "The ability to physically change properties of real objects\r\nused in augmented reality (AR) applications is limited.\r\nGeometrical properties (shape, size) and appearance\r\n(color, texture) of a real object remain unchanged during\r\na single application run. However, an AR system can be\r\nused to provide a virtual texture for the real object. The\r\ntexture can be changed dynamically based on user interactions.\r\nThe developed AR system includes two components,\r\nthe “3D Table” and the “Texture Painter.” The 3D\r\nTable is a table where real objects are placed. The tabletop\r\nis used as a projection surface, making it possible to\r\nadd a context to the real object. The Texture Painter makes\r\nit possible to paint on the real object, using a real brush\r\nand virtual ink (texture). ARToolkit markers are placed on\r\nthe 3D Table tabletop to augment the environment with the\r\nvirtual objects. Markers are either physical (printouts on\r\nthe tabletop) or virtual (projections). The scene is recorded\r\nwith a camera and the composed video is projected in real\r\ntime. The projection shows a virtual environment, real objects\r\npainted with virtual ink, and virtual objects positioned\r\nwhere real or virtual ARToolkit markers are placed. The\r\ndeveloped system is used in architectural design applications\r\nwhere, due to the different qualities of real architectural\r\nmodels and rendered architectural models, real models\r\nare still used. The system was tested at the Academy of\r\nFine Arts in Vienna where it is used as a support tool for\r\narchitecture students.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 297, "image_height": 210, "name": "matkovic-2005-dyn-image.jpg", "type": "image/jpeg", "size": 29498, "path": "Publication:matkovic-2005-dyn", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 235, 26, 586, 581 ], "booktitle": "Proceeding of IEEE Virtual Reality 2005", "date_from": "2005-03-12", "date_to": "2005-03-16", "editor": "B. Frohlich, S. Julier, and H. Takemura", "isbn": "0-7803-8929-8 ", "lecturer": [ 235 ], "location": "Bonn, Germany", "pages_from": "245", "pages_to": "248", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 297, "image_height": 210, "name": "matkovic-2005-dyn-image.jpg", "type": "image/jpeg", "size": 29498, "path": "Publication:matkovic-2005-dyn", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "matkovic-2005-dyn-PDF.pdf", "type": "application/pdf", "size": 337720, "path": "Publication:matkovic-2005-dyn", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/matkovic-2005-dyn-PDF:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/matkovic-2005-dyn/", "__class": "Publication" }, { "id": "groeller-2005-impo", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Importance-Driven Image Generation in Medical Visualization", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-09-12", "event": "Informatikkolloquium der TU Delft", "location": "Faculty of Electrical Engineering, Mathematics and Computer Sciences, TU Delft, Netherlands", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-impo/", "__class": "Publication" }, { "id": "Scherzer_2005", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Robust Shadow Maps for Large Environments", "date": "2005", "abstract": "One of the most demanding challenges for real-time shadow algorithms is their application to large-scale, polygon-rich and dynamic environments.\r\nIn this paper, we discuss the major problems encountered in applying shadow maps to such an environment and provide practical and robust solutions to the appearing problems. We tackle projection aliasing with the aid of an eye space blur. We compare the major biasing methods to remove incorrect self-shadowing of polygons. Finally we are providing some advancements to the recently published light space perspective shadow mapping method to resolve projection aliasing problems.\r\n", "authors_et_al": false, "substitute": null, "main_image": { "description": "The final intersection body B (violet) with a light direction from above (orange arrows)", "filetitle": "body_B", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1125, "name": "Scherzer_2005-body_B.png", "type": "image/png", "size": 580386, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452 ], "booktitle": "Proceedings of the Central European Seminar on Computer Graphics 2005", "publisher": "Eigenverlag", "research_areas": [], "keywords": [ "real-time", "shadow algorithm" ], "weblinks": [], "files": [ { "description": "The final intersection body B (violet) with a light direction from above (orange arrows)", "filetitle": "body_B", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1500, "image_height": 1125, "name": "Scherzer_2005-body_B.png", "type": "image/png", "size": 580386, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-body_B:thumb{{size}}.png" }, { "description": "paper", "filetitle": "paper", "main_file": true, "use_in_gallery": true, "access": "public", "name": "Scherzer_2005-paper.pdf", "type": "application/pdf", "size": 4400364, "path": "Publication:Scherzer_2005", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/Scherzer_2005-paper:thumb{{size}}.png" } ], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Scherzer_2005/", "__class": "Publication" }, { "id": "groeller-2005-foc", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Focus+Context Visualization of Features and Topological Structures", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-09-30", "event": "Workshop Topology-Based Methods in Visualization", "location": "Budmerice, Slovakia", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-foc/", "__class": "Publication" }, { "id": "groeller-2005-dia", "type_id": "inbook", "tu_id": null, "repositum_id": null, "title": "Diagnostic Relevant Visualization of Vascular Structures ", "date": "2005", "abstract": "Traditional volume visualization techniques sometimes provide incomplete clinical\r\ninformation needed for applications in medical visualization. In the area of vascular visualization\r\nimportant features such as the lumen of a diseased vessel segment may not be\r\nvisible. One way to display vascular structures for diagnostic purposes is to generate longitudinal\r\ncross-sections in order to show their lumen, wall, and surrounding tissue in a curved\r\nplane. Curved planar reformation (CPR) has proven to be an acceptable practical solution.\r\nWe discuss four different methods to generate CPR images from single vessel segments: Projected\r\nCPR, stretched CPR, straightened CPR, and helical CPR. Furthermore we investigate\r\nthree different methods for displaying vascular trees: Multi-path projected CPR, multi-path\r\nstretched CPR, and untangled CPR. The principle concept of each method is discussed and\r\ndetailed information for the realization is given. In addition the properties, advantages and\r\ndisadvantages of each method are summarized.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 511, "image_height": 490, "name": "groeller-2005-dia-image.jpg", "type": "image/jpeg", "size": 654235, "path": "Publication:groeller-2005-dia", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 162, 164, 165, 166 ], "booktitle": "Scientific Visualization: The Visual Extraction of Knowledge from Data", "editor": "G.-P. Bonneau, T. Ertl, G.M. Nielson", "isbn": "3540260668", "pages_from": "207", "pages_to": "228", "publisher": "Springer Verlag, Berlin", "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 511, "image_height": 490, "name": "groeller-2005-dia-image.jpg", "type": "image/jpeg", "size": 654235, "path": "Publication:groeller-2005-dia", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-image:thumb{{size}}.png" }, { "description": "", "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "groeller-2005-dia-PDF.pdf", "type": "application/pdf", "size": 3000619, "path": "Publication:groeller-2005-dia", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/groeller-2005-dia-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "ADAPT" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-dia/", "__class": "Publication" }, { "id": "groeller-2005-abs", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Abstraction Techniques for Illustrative Visualization", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 166 ], "date_to": "2005-11-17", "event": "VMV 2005: Vision, Modeling and Visualization 2005", "location": "Erlangen, Germany", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/groeller-2005-abs/", "__class": "Publication" }, { "id": "purgathofer-2005-ca", "type_id": "book", "tu_id": null, "repositum_id": null, "title": "Computational Aesthetics 2005", "date": "2005", "abstract": "", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 177, 207, 596, 190 ], "isbn": "3905673274", "pages": "249", "publisher": "Eurographics Association", "research_areas": [], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/purgathofer-2005-ca/", "__class": "Publication" }, { "id": "Purgathofer-2005-Ros", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Realtime Rendering Algorithmen", "date": "2005", "abstract": "Die enorme Entwicklung der Graphikkarten für PCs hat die Computergraphik-Programmierung weitreichend beeinflusst. Das effiziente Ausnutzen der sehr hohen Hardware-Leistung ermöglicht es, immer komplexere Szenen in Echtzeit zu rendern. Mehrere Strategien wurden entwickelt: die optimale Verteilung der Arbeit zwischen CPU und GPU, das frühzeitige Entfernen sicher nicht sichtbarer Objekte (Visibility Culling), geometrische Vereinfachungen, Texturen verschiedener Art und bildbasierte Bilderstellungsverfahren (Image-based Rendering). Der Vortrag gibt einen Überblick über diese Strategien und erklärt ausgewählte Algorithmen etwas detaillierter.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 190 ], "date_from": "2005-03-31", "event": " ", "location": "Universität Rostock", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Purgathofer-2005-Ros/", "__class": "Publication" }, { "id": "Purgathofer-2005-Tub", "type_id": "talk", "tu_id": null, "repositum_id": null, "title": "Some Speedup Techniques for Rendering", "date": "2005", "abstract": "Recent developments of graphics hardware for PCs have heavily influenced computer graphics programming. Making optimal use of the very efficient hardware features enables real-time rendering of more and more complex scenes. Several strategies are exploited: optimal workload distribution between CPU and GPU, visibility culling, geometric simplifications, textures, and image-based rendering. The talk gives an overview of these strategies and describes some results from the Vienna Graphics Group in more detail.", "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 190 ], "date_from": "2005-10-21", "event": " ", "location": "Universität Tübingen", "research_areas": [ "Rendering" ], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/Purgathofer-2005-Tub/", "__class": "Publication" }, { "id": "rautek-2005-dvr", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "D²VR High-Quality Volume Rendering of Projection-based Volumetric Data", "date": "2005", "abstract": "Volume rendering techniques are conventionally classified into two categories\r\nrepresented by direct and indirect methods. Indirect methods require\r\nto transform the initial volumetric model into an intermediate geometrical\r\nmodel in order to efficiently visualize it. In contrast, direct volume-rendering\r\n(DVR) methods can directly process the volumetric data. Modern 3D scanning\r\ntechnologies, like CT or MRI, usually provide data as a set of samples on\r\nrectilinear grid points, which are computed from the measured projections by\r\ndiscrete tomographic reconstruction. Therefore the set of these reconstructed\r\nsamples can already be considered as an intermediate volume representation.\r\nIn this diploma thesis a new paradigm for direct direct volume rendering\r\n(D2VR) is introduced, which does not even require a rectilinear grid, since it\r\nis based on an immediate processing of the measured projections. Arbitrary\r\nsamples for ray casting are reconstructed from the projections by using the\r\nFiltered Back-Projection algorithm. The method presented in this thesis removes\r\nan unnecessary and lossy resampling step from the classical volume\r\nrendering pipeline. Thus, it provides much higher accuracy than traditional\r\ngrid-based resampling techniques do. Furthermore a novel high-quality gradient\r\nestimation scheme, which is also based on the Filtered Back-Projection\r\nalgorithm is presented. Finally we introduce a hierarchical space partitioning\r\napproach for projection-based volumetric data, which is used to accelerate\r\nD²VR.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 512, "image_height": 512, "name": "rautek-2005-dvr-image.jpg", "type": "image/jpeg", "size": 22303, "path": "Publication:rautek-2005-dvr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 488 ], "supervisor": [ 160, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 512, "image_height": 512, "name": "rautek-2005-dvr-image.jpg", "type": "image/jpeg", "size": 22303, "path": "Publication:rautek-2005-dvr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-image:thumb{{size}}.png" }, { "description": "", "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "rautek-2005-dvr-PDF.pdf", "type": "application/pdf", "size": 16381447, "path": "Publication:rautek-2005-dvr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-PDF:thumb{{size}}.png" }, { "description": "", "filetitle": "title", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1531, "image_height": 1531, "name": "rautek-2005-dvr-title.jpg", "type": "image/jpeg", "size": 286078, "path": "Publication:rautek-2005-dvr", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-title.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/rautek-2005-dvr-title:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/rautek-2005-dvr/", "__class": "Publication" }, { "id": "eg-tut2005-iv", "type_id": "misc", "tu_id": null, "repositum_id": null, "title": "Eurographics Tutorial on Illustrative Visualization", "date": "2005", "abstract": "The tutorial presents state-of-the-art visualization techniques inspired by traditional technical and medical illustrations.\nSuch techniques exploit the perception of the human visual system and provide effective visual abstractions\nto make the visualization clearly understandable. Visual emphasis and abstraction has been used for expressive\npresentation from prehistoric paintings to nowadays scientific and medical illustrations. Many of the expressive\ntechniques used in art are adopted in computer graphics, and are denoted as illustrative or non-photorealistic\nrendering. Different stroke techniques, or brush properties express a particular level of abstraction. Feature emphasis\nor feature suppression is achieved by combining different abstraction levels in illustrative rendering.\nChallenges in visualization research are very large data visualization as well as multi-dimensional data visualization.\nTo effectively convey the most important visual information there is a significant need for visual abstraction.\nFor less relevant information the dedicated image space is reduced to enhance more prominent features. The discussed techniques in the context of scientific visualization are based on iso-surfaces and volume rendering. Apart\nfrom visual abstraction, i.e., illustrative representation, the visibility of prominent features can be achieved by illustrative visualization techniques such as cut-away views or ghosted views. The structures that occlude the most prominent information are suppressed in order to clearly see more interesting parts. Another smart way to provide information on the data is using exploded views or other types of deformation. Illustrative visualization is demonstrated via application-specific tasks in medical visualization. An important aspect\nas compared to traditional medical illustrations is the interactivity and real-time manipulation of the acquired\npatient data. This can be very useful in anatomy education. Another application area is surgical planning which\nis demonstrated with two case studies: neck dissection and liver surgery planning.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 300, "image_height": 81, "name": "eg-tut2005-iv-image.jpg", "type": "image/jpeg", "size": 4401, "path": "Publication:eg-tut2005-iv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 171, 166, 231, 226, 563, 564 ], "booktitle": "Tutorial Notes on Illustrative Visualization", "publisher": "Eurographics", "research_areas": [ "IllVis" ], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 300, "image_height": 81, "name": "eg-tut2005-iv-image.jpg", "type": "image/jpeg", "size": 4401, "path": "Publication:eg-tut2005-iv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-image:thumb{{size}}.png" }, { "description": null, "filetitle": "Tutorial Notes", "main_file": true, "use_in_gallery": false, "access": "public", "name": "eg-tut2005-iv-Tutorial Notes.pdf", "type": "application/pdf", "size": 18410027, "path": "Publication:eg-tut2005-iv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-Tutorial Notes.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/eg-tut2005-iv-Tutorial Notes:thumb{{size}}.png" } ], "projects_workgroups": [ "exvisation" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/eg-tut2005-iv/", "__class": "Publication" }, { "id": "hartmann-2005-adv", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "An Advanced Data Structure for Large Medical Datasets", "date": "2005", "abstract": "The size of volumetric data acquired from computed tomography scanning\r\ndevices is steadily increasing, which often makes it impractical to store the\r\nwhole data in physical memory. Therefore, e±cient data structures are re-\r\nquired. In this thesis several data structures are examined in respect to\r\napplication for computed tomography-angiography. In particular, memory\r\nconsumption and performance of visualization are addressed. Additionally,\r\na data structure based on adaptive meshes is implemented. This data struc-\r\nture can leverage resources where they are needed. In order to generate the\r\nadaptive meshes, two di®erent algorithms are explained and compared to\r\neach other. The most common visualization techniques for angiography are\r\ndescribed.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 98, "image_height": 100, "name": "hartmann-2005-adv-image.jpg", "type": "image/jpeg", "size": 7677, "path": "Publication:hartmann-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 489 ], "supervisor": [ 1334, 160, 166 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 98, "image_height": 100, "name": "hartmann-2005-adv-image.jpg", "type": "image/jpeg", "size": 7677, "path": "Publication:hartmann-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-image:thumb{{size}}.png" }, { "description": null, "filetitle": "PDF", "main_file": true, "use_in_gallery": false, "access": "public", "name": "hartmann-2005-adv-PDF.pdf", "type": "application/pdf", "size": 1883058, "path": "Publication:hartmann-2005-adv", "url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-PDF.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/hartmann-2005-adv-PDF:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2005/hartmann-2005-adv/", "__class": "Publication" } ]