[ { "id": "bernhard-2011-bmtf", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Bi-modal Task Faciliation in a Virtual Traffic Scenario through Spatialized Sound Rendering ", "date": "2011-11", "abstract": "Audio rendering is generally used to increase the realism of Virtual Environments (VE). In addition, audio rendering may also improve the performance in specific tasks carried out in interactive applications such as games or simulators.\n\nIn this paper we investigate the effect of the quality of sound rendering on task performance in a task which is inherently vision dominated. The task is a virtual traffic gap crossing scenario with two elements: first, to discriminate crossable and uncrossable gaps in oncoming traffic, and second, to find the right timing to start crossing the street without an accident.\n\nA study was carried out with 48 participants in an immersive Virtual Environment setup with a large screen and headphones. Participants were grouped into three different conditions. In the first condition, spatialized audio rendering with head-related transfer function (HRTF) filtering was used. The second group was tested with conventional stereo rendering, and the remaining group ran the experiment in a mute condition.\n\nOur results give a clear evidence that spatialized audio improves task performance compared to the unimodal mute condition. Since all task-relevant information was in the participants' field-of-view, we conclude that an enhancement of task performance results from a bimodal advantage due to the integration of visual and auditory spatial cues.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1600, "image_height": 1200, "name": "bernhard-2011-bmtf-image.jpg", "type": "image/jpeg", "size": 231255, "path": "Publication:bernhard-2011-bmtf", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 660, 838, 193 ], "issn": "1544-3558", "journal": "ACM Transactions on Applied Perception", "note": "Article No. 24", "number": "4", "pages_from": "1", "pages_to": "22", "volume": "8", "research_areas": [ "Rendering" ], "keywords": [ "bimodal task faciliation", "pedestrian safety", "virtual environments", "audio-visual perception", "head related transfer functions" ], "weblinks": [ { "href": "http://dl.acm.org/citation.cfm?id=2043606&CFID=76205769&CFTOKEN=78897554", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "draft", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": null, "preview_image_height": null, "name": "bernhard-2011-bmtf-draft.pdf", "type": "application/pdf", "size": 10940015, "path": "Publication:bernhard-2011-bmtf", "preview_name": "bernhard-2011-bmtf-draft:preview.png", "preview_type": "application/pdf", "preview_size": 14528250, "url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1600, "image_height": 1200, "name": "bernhard-2011-bmtf-image.jpg", "type": "image/jpeg", "size": 231255, "path": "Publication:bernhard-2011-bmtf", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/bernhard-2011-bmtf-image:thumb{{size}}.png" } ], "projects_workgroups": [ "CROSSMOD", "GPV" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2011/bernhard-2011-bmtf/", "__class": "Publication" }, { "id": "labschuetz-2011-rsr", "type_id": "bachelorthesis", "tu_id": null, "repositum_id": null, "title": "Realistic real-time sound rendering in virtual environments", "date": "2011", "abstract": "Spatial audio rendering plays an important role in simulating realistic\r\nvirtual environments. This report gives an overview. It contains an introduction to the physical background of sound and the psychophysical background of sound. Spatial audio in current applications such as video games is reviewed and an overview of acoustical simulations and applications with special interest in real-time application is given. Numerical and geometric methods are presented and compared.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1326, "image_height": 1008, "name": "labschuetz-2011-rsr-image.jpg", "type": "image/jpeg", "size": 142397, "path": "Publication:labschuetz-2011-rsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 840 ], "supervisor": [ 660 ], "research_areas": [], "keywords": [ "real-time audio rendering", "psychoacoustics", "virtual environments", "sound in computer games", "physics of soundpropagation" ], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1326, "image_height": 1008, "name": "labschuetz-2011-rsr-image.jpg", "type": "image/jpeg", "size": 142397, "path": "Publication:labschuetz-2011-rsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-image:thumb{{size}}.png" }, { "description": "", "filetitle": "paper", "main_file": true, "use_in_gallery": false, "access": "public", "name": "labschuetz-2011-rsr-paper.pdf", "type": "application/pdf", "size": 3792807, "path": "Publication:labschuetz-2011-rsr", "url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-paper.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/labschuetz-2011-rsr-paper:thumb{{size}}.png" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2011/labschuetz-2011-rsr/", "__class": "Publication" }, { "id": "labschuetz-2010-bms", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "Enabling bimodal search in games by spatial sound rendering ", "date": "2010", "abstract": "A computer game with a visual search taks was developed to investigate whether search performance can be enhanced by sounds which are spatialized with sound rendering methods (e.g. Head Related Transfer Functions). The game was prepared for a pilot user study to test the hypothesis that spatialized audio can improve performance in the game's task. ", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 667, "image_height": 418, "name": "labschuetz-2010-bms-image.jpg", "type": "image/jpeg", "size": 71829, "path": "Publication:labschuetz-2010-bms", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 840 ], "date_end": "2010-04", "date_start": "2009-09", "matrikelnr": "8971103", "supervisor": [ 660 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 667, "image_height": 418, "name": "labschuetz-2010-bms-image.jpg", "type": "image/jpeg", "size": 71829, "path": "Publication:labschuetz-2010-bms", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-image:thumb{{size}}.png" }, { "description": "Report and Documentation", "filetitle": "report", "main_file": false, "use_in_gallery": false, "access": "public", "name": "labschuetz-2010-bms-report.pdf", "type": "application/pdf", "size": 793349, "path": "Publication:labschuetz-2010-bms", "url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-report.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/labschuetz-2010-bms-report:thumb{{size}}.png" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2010/labschuetz-2010-bms/", "__class": "Publication" }, { "id": "GRELAUD-2009-EPA", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Efficient and Practical Audio-Visual Rendering for Games using Crossmodal Perception", "date": "2009-02", "abstract": "Interactive applications such as computer games, are inherently audio visual, requiring high-quality rendering of complex 3D audio soundscapes and graphics environments. A frequent source of audio events is impact sounds, typically generated with physics engines. In this paper, we first present an optimization allowing efficient usage of impact sounds in a unified audio rendering pipeline, also including prerecorded sounds. We also exploit a recent result on audio-visual crossmodal perception to introduce a new level-of-detail selection algorithm, which jointly chooses the quality level of audio and graphics rendering. We have integrated these two techniques as a comprehensive crossmodal audio-visual rendering pipeline in a home-grown game engine, thus demonstrating the potential utility of our approach.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 800, "image_height": 600, "name": "GRELAUD-2009-EPA-teaser.jpg", "type": "image/jpeg", "size": 171903, "path": "Publication:GRELAUD-2009-EPA", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-teaser.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-teaser:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 800, 801, 193, 802, 803 ], "address": "New York, NY, USA", "booktitle": "Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games 2009", "date_from": "2009-02-27", "date_to": "2009-03-01", "isbn": "978-1-60558-429-4", "lecturer": [ 800 ], "location": "Boston, Massachusetts", "pages_from": "177", "pages_to": "182", "publisher": "ACM", "research_areas": [ "Rendering" ], "keywords": [ "audio-visual rendering", "crossmodal perception" ], "weblinks": [], "files": [ { "description": null, "filetitle": "Preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "GRELAUD-2009-EPA-Preprint.pdf", "type": "application/pdf", "size": 6393742, "path": "Publication:GRELAUD-2009-EPA", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-Preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-Preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "teaser", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 800, "image_height": 600, "name": "GRELAUD-2009-EPA-teaser.jpg", "type": "image/jpeg", "size": 171903, "path": "Publication:GRELAUD-2009-EPA", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-teaser.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/GRELAUD-2009-EPA-teaser:thumb{{size}}.png" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2009/GRELAUD-2009-EPA/", "__class": "Publication" }, { "id": "SUNDSTEDT-2008-ASF", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "A Psychophysical Study of Fixation Behavior in a Computer Game", "date": "2008-08", "abstract": "Prediction of gaze behavior in gaming environments can be a tremendously useful asset to game designers, enabling them to improve gameplay, selectively increase visual fidelity, and optimize the distribution of computing resources. The use of saliency maps is currently being advocated as the method of choice for predicting visual attention, crucially under the assumption that no specific task is present. This is achieved by analyzing images for low-level features such as motion, contrast, luminance, etc. However, the majority of computer games are designed to be easily understood and pose a task readily apparent to most players. Our psychophysical experiment shows that in a task-oriented context such as gaming, the predictive power of saliency maps at design time can be weak. Thus, we argue that a more involved protocol utilizing eye tracking, as part of the computer game design cycle, can be sufficiently robust to succeed in predicting fixation behavior of players.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1450, "image_height": 536, "name": "SUNDSTEDT-2008-ASF-thumbnail.png", "type": "image/png", "size": 374956, "path": "Publication:SUNDSTEDT-2008-ASF", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-thumbnail:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 730, 731, 193, 732 ], "booktitle": "ACM Symposium on Applied Perception in Graphics and Visualization 2008", "date_from": "2008-08-09", "date_to": "2008-08-10", "doi": "10.1145/1394281.1394288", "editor": "Sarah Creem-Regehr and Karol Myszkowski", "isbn": "978-1-59593-981-4", "lecturer": [ 730 ], "location": "Los Angeles, California", "pages_from": "43", "pages_to": "50", "publisher": "ACM", "research_areas": [], "keywords": [ "saliency", "eye tracking", "electronic games", "visual attention", "psychophysics" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SUNDSTEDT-2008-ASF-draft.pdf", "type": "application/pdf", "size": 5044193, "path": "Publication:SUNDSTEDT-2008-ASF", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1450, "image_height": 536, "name": "SUNDSTEDT-2008-ASF-thumbnail.png", "type": "image/png", "size": 374956, "path": "Publication:SUNDSTEDT-2008-ASF", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/SUNDSTEDT-2008-ASF-thumbnail:thumb{{size}}.png" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SUNDSTEDT-2008-ASF/", "__class": "Publication" }, { "id": "SCHERZER-2008-FSR", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Frame Sequential Interpolation for Discrete Level-of-Detail Rendering", "date": "2008-06", "abstract": "In this paper we present a method for automatic interpolation between adjacent discrete levels of detail to achieve smooth LOD changes in image space. We achieve this by breaking the problem into two passes: We render the two LOD levels individually and combine them in a separate pass afterwards. The interpolation is formulated in a way that only one level has to be updated per frame and the other can be reused from the previous frame, thereby causing roughly the same render cost as with simple non interpolated discrete LOD rendering, only incurring the slight overhead of the final combination pass. Additionally we describe customized interpolation schemes using visibility textures.\n\nThe method was designed with the ease of integration into existing engines in mind. It requires neither sorting nor blending of objects, nor does it introduce any constrains in the LOD used. The LODs can be coplanar, alpha masked, animated, impostors, and intersecting, while still interpolating smoothly.\n\n", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 804, "name": "SCHERZER-2008-FSR-thumbnail.png", "type": "image/png", "size": 750809, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 193 ], "date_from": "2008-06-23", "date_to": "2008-06-25", "event": "Eurographics Symposium on Rendering 2008", "issn": "0167-7055", "journal": "Computer Graphics Forum (Proceedings EGSR 2008)", "lecturer": [ 452 ], "location": "Sarajevo, Bosnia-Herzegovina", "number": "4", "pages_from": "1175", "pages_to": "1181", "volume": "27", "research_areas": [ "Rendering" ], "keywords": [ "LOD blending", "real-time rendering", "levels of detail" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "SCHERZER-2008-FSR-draft.pdf", "type": "application/pdf", "size": 12907147, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1311, "image_height": 804, "name": "SCHERZER-2008-FSR-thumbnail.png", "type": "image/png", "size": 750809, "path": "Publication:SCHERZER-2008-FSR", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-thumbnail:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "preview_image_width": 768, "preview_image_height": 576, "name": "SCHERZER-2008-FSR-video.avi", "type": "video/x-msvideo", "size": 46305280, "path": "Publication:SCHERZER-2008-FSR", "preview_name": "SCHERZER-2008-FSR-video:preview.png", "preview_type": "image/jpeg", "preview_size": 81994, "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/SCHERZER-2008-FSR-video:video.mp4" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2008/SCHERZER-2008-FSR/", "__class": "Publication" }, { "id": "mattausch-2008-CHC", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "CHC++: Coherent Hierarchical Culling Revisited", "date": "2008-04", "abstract": "We present a new algorithm for efficient occlusion culling using hardware occlusion queries. The algorithm significantly improves on previous techniques by making better use of temporal and spatial coherence of visibility. This is achieved by using adaptive visibility prediction and query batching. As a result of the new optimizations the number of issued occlusion queries and the number of rendering state changes are significantly reduced. We also propose a simple method for determining tighter bounding volumes for occlusion queries and a method which further reduces the pipeline stalls. The proposed method provides up to an order of magnitude speedup over the previous state of the art. The new technique is simple to implement, does not rely on hardware calibration and integrates well with modern game engines.", "authors_et_al": false, "substitute": null, "main_image": { "description": "color coded state changes induced by CHC++", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1670, "image_height": 1420, "name": "mattausch-2008-CHC-image.png", "type": "image/png", "size": 32953, "path": "Publication:mattausch-2008-CHC", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 326, 198, 193 ], "date_from": "2008-04-14", "date_to": "2008-04-18", "event": "EUROGRAPHICS 2008", "issn": "0167-7055", "journal": "Computer Graphics Forum (Proceedings Eurographics 2008)", "lecturer": [ 326 ], "location": "Crete", "number": "2", "pages_from": "221", "pages_to": "230", "volume": "27", "research_areas": [ "Rendering" ], "keywords": [ "temporal coherence", "dynamic occlusion culling", "occlusion queries" ], "weblinks": [], "files": [ { "description": null, "filetitle": "draft", "main_file": true, "use_in_gallery": false, "access": "public", "name": "mattausch-2008-CHC-draft.pdf", "type": "application/pdf", "size": 2085122, "path": "Publication:mattausch-2008-CHC", "url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-draft.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-draft:thumb{{size}}.png" }, { "description": null, "filetitle": "EG slides", "main_file": false, "use_in_gallery": false, "access": "public", "name": 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"preview_image_width": 800, "preview_image_height": 600, "name": "mattausch-2008-CHC-walkthrough-videos.avi", "type": "video/x-msvideo", "size": 84248576, "path": "Publication:mattausch-2008-CHC", "preview_name": "mattausch-2008-CHC-walkthrough-videos:preview.png", "preview_type": "image/jpeg", "preview_size": 17035, "url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-walkthrough-videos.avi", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-walkthrough-videos:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/mattausch-2008-CHC-walkthrough-videos:video.mp4" } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2008/mattausch-2008-CHC/", "__class": "Publication" }, { "id": "Scherzer-2007-PCS", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Pixel-Correct Shadow Maps with Temporal Reprojection and Shadow Test Confidence", "date": "2007-06", "abstract": "Shadow mapping suffers from spatial aliasing (visible as blocky shadows) as well as temporal aliasing (visible as flickering). Several methods have already been proposed for reducing such artifacts, but so far none is able to provide satisfying results in real time.\n\nThis paper extends shadow mapping by reusing information of previously rasterized images, stored efficiently in a so-called history buffer. This buffer is updated in every frame and then used for the shadow calculation. In combination with a special confidence-based method for the history buffer update (based on the current shadow map), temporal and spatial aliasing can be completely removed. The algorithm converges in about 10 to 60 frames and during convergence, shadow borders are sharpened over time. Consequently, in case of real-time frame rates, the temporal shadow adaption is practically imperceptible. The method is simple to implement and is as fast as uniform shadow mapping, incurring only the minor speed hit of the history buffer update. It works together with advanced filtering methods like percentage closer filtering and more advanced shadow mapping techniques like perspective or light space perspective shadow maps.", "authors_et_al": false, "substitute": null, "main_image": { "description": "Pixel-correct shadow maps as a result of using a shadow map (size 10242) with shadow test confidence together with a history buffer. Note that projection and perspective aliasing are completely removed.", "filetitle": "image1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image1.png", "type": "image/png", "size": 1924365, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 452, 356, 193 ], "booktitle": "Rendering Techniques 2007 (Proceedings Eurographics Symposium on Rendering)", "date_from": "2007-06-25", "date_to": "2007-06-27", "editor": "Jan Kautz and Sumanta Pattanaik", "isbn": "978-3-905673-52-4", "lecturer": [ 452 ], "location": "Grenoble, France", "organization": "Eurographics", "pages_from": "45", "pages_to": "50", "publisher": "Eurographics Association", "research_areas": [ "Rendering" ], "keywords": [ "shadow mapping" ], "weblinks": [], "files": [ { "description": "Pixel-correct shadow maps as a result of using a shadow map (size 10242) with shadow test confidence together with a history buffer. Note that projection and perspective aliasing are completely removed.", "filetitle": "image1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image1.png", "type": "image/png", "size": 1924365, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image1:thumb{{size}}.png" }, { "description": "In this figure we used our new shadow mapping technique (PCSM) toshow that even scenarios were projection aliasing is the dominant source of error, we can produce the correct shadowing solution.", "filetitle": "image2", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image2.png", "type": "image/png", "size": 1857584, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image2.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image2:thumb{{size}}.png" }, { "description": "In this figure we used our new shadow mapping technique (PCSM) toshow that even scenarios were projection aliasing is the dominant source of error, we can produce the correct shadowing solution.", "filetitle": "image3", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1576, "image_height": 1024, "name": "Scherzer-2007-PCS-image3.png", "type": "image/png", "size": 783356, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image3.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image3:thumb{{size}}.png" }, { "description": "New fragments (shown in red) without history that result from a camera translation.", "filetitle": "image4", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1280, "image_height": 684, "name": "Scherzer-2007-PCS-image4.png", "type": "image/png", "size": 619467, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image4.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-image4:thumb{{size}}.png" }, { "description": null, "filetitle": "Preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Scherzer-2007-PCS-Preprint.pdf", "type": "application/pdf", "size": 8878009, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-Preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-Preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Scherzer-2007-PCS-video.wmv", "type": "text/plain", "size": 30221796, "path": "Publication:Scherzer-2007-PCS", "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/Scherzer-2007-PCS-video.wmv", "thumb_image_sizes": [] } ], "projects_workgroups": [ "CROSSMOD" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2007/Scherzer-2007-PCS/", "__class": "Publication" } ]