[ { "id": "leimer-2018-sar", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Sit & Relax: Interactive Design of Body-Supporting Surfaces", "date": "2018-10", "abstract": "We propose a novel method for interactive design of well-fitting body-supporting surfaces that is driven by the pressure distribution on the body's surface. \n\nOur main contribution is an interactive modeling system that utilizes captured body poses and computes an importance field that is proportional to the pressure distribution on the body for a given pose. This distribution indicates where the body should be supported in order to easily hold a particular pose, which is one of the measures of comfortable sitting. \t\n\nUsing our approximation, we propose the entire workflow for interactive design of $C^2$ smooth surfaces which serve as seats, or generally, as body supporting furniture for comfortable sitting. Finally, we also provide a design tool for Rhino/Grasshopper that allows for interactive creation of single designs or entire multi-person sitting scenarios. We also test the tool with design students and present several results. \t\t\n\nOur method aims at interactive design in order to help designers to create appropriate surfaces digitally without additional empirical design passes.", "authors_et_al": false, "substitute": null, "main_image": { "description": "image", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1339, "image_height": 743, "name": "leimer-2018-sar-image.png", "type": "image/png", "size": 938874, "path": "Publication:leimer-2018-sar", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 1019, 836, 1063, 844 ], "cfp": { "name": "call_for_papers.pdf", "type": "application/pdf", "error": "0", "size": "2740870", "orig_name": "call_for_papers.pdf", "ext": "pdf" }, "date_from": "2018-10-08", "date_to": "2018-10-11", "doi": "10.1111/cgf.13573", "event": "Pacific Graphics 2018", "journal": "Computer Graphics Forum", "lecturer": [ 1019 ], "location": "Hong Kong", "number": "7", "open_access": "yes", "pages_from": "349", "pages_to": "359", "volume": "37", "research_areas": [ "Fabrication", "Geometry", "Modeling" ], "keywords": [ "interactive modeling", "interactive design", "digital fabrication" ], "weblinks": [ { "href": "https://doi.org/10.1111/cgf.13573 ", "caption": "DOI", "description": null, "main_file": 0 } ], "files": [ { "description": "image", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1339, "image_height": 743, "name": "leimer-2018-sar-image.png", "type": "image/png", "size": 938874, "path": "Publication:leimer-2018-sar", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-image:thumb{{size}}.png" }, { "description": "preprint", "filetitle": "preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "leimer-2018-sar-preprint.pdf", "type": "application/pdf", "size": 10955588, "path": "Publication:leimer-2018-sar", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-preprint:thumb{{size}}.png" }, { "description": "video", "filetitle": "video", "main_file": true, "use_in_gallery": false, "access": "public", "name": "leimer-2018-sar-video.mp4", "type": "video/mp4", "size": 201674852, "path": "Publication:leimer-2018-sar", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-video.mp4", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/leimer-2018-sar-video:video.mp4" } ], "projects_workgroups": [ "MAKE-IT-FAB", "geo-materials" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2018/leimer-2018-sar/", "__class": "Publication" }, { "id": "birsak-thesis", "type_id": "phdthesis", "tu_id": null, "repositum_id": "20.500.12708/7025", "title": "Discrete Optimization on Graphs and Grids for the Creation of Navigational and Artistic Imagery", "date": "2018-09-30", "abstract": null, "authors_et_al": false, "substitute": null, "main_image": null, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836 ], "date_end": "2018-09", "date_start": "2012-08", "reviewer_1": [ 474 ], "reviewer_2": [ 194 ], "rigorosum": "2018-10-17", "supervisor": [ 193 ], "research_areas": [ "Modeling" ], "keywords": [], "weblinks": [], "files": [], "projects_workgroups": [ "Photo-Guide", "MAKE-IT-FAB" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-thesis/", "__class": "Publication" }, { "id": "birsak-2017-dpe", "type_id": "journalpaper_notalk", "tu_id": null, "repositum_id": null, "title": "Dynamic Path Exploration on Mobile Devices", "date": "2018-05", "abstract": "We present a novel framework for visualizing routes on mobile devices. Our framework is suitable for helping users explore their environment.\nFirst, given a starting point and a maximum route length, the system retrieves nearby points of interest (POIs). Second, we automatically compute an attractive walking path through the environment trying to pass by as many highly ranked POIs as possible. Third, we automatically compute a route visualization that shows the current user position, POI locations via pins, and detail lenses for more information about the POIs. The visualization is an animation of an orthographic map view that follows the current user position. We propose an optimization based on a binary integer program (BIP) that models multiple requirements for an effective placement of detail lenses. We show that our path computation method outperforms recently proposed methods and we evaluate the overall impact of our framework in two user studies.", "authors_et_al": false, "substitute": null, "main_image": { "description": "thumbnail", "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2002, "image_height": 1246, "name": "birsak-2017-dpe-thumbnail.png", "type": "image/png", "size": 1540567, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-thumbnail:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 844, 194, 193 ], "doi": "10.1109/TVCG.2017.2690294", "issn": "1077-2626", "journal": "IEEE Transactions on Visualization and Computer Graphics", "number": "5", "pages_from": "1784", "pages_to": "1798", "protocol": "null", "volume": "24", "research_areas": [ "InfoVis" ], "keywords": [], "weblinks": [], "files": [ { "description": "overview image", "filetitle": "overview", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2229, "image_height": 2762, "name": "birsak-2017-dpe-overview.png", "type": "image/png", "size": 3708886, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-overview.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-overview:thumb{{size}}.png" }, { "description": null, "filetitle": "preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "birsak-2017-dpe-preprint.pdf", "type": "application/pdf", "size": 39449554, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "supplementary", "main_file": false, "use_in_gallery": false, "access": "public", "name": "birsak-2017-dpe-supplementary.pdf", "type": "application/pdf", "size": 26746193, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-supplementary.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-supplementary:thumb{{size}}.png" }, { "description": "thumbnail", "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 2002, "image_height": 1246, "name": "birsak-2017-dpe-thumbnail.png", "type": "image/png", "size": 1540567, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-thumbnail.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-thumbnail:thumb{{size}}.png" }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "name": "birsak-2017-dpe-video.mp4", "type": "video/mp4", "size": 45077025, "path": "Publication:birsak-2017-dpe", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-video.mp4", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/birsak-2017-dpe-video:video.mp4" } ], "projects_workgroups": [ "Photo-Guide", "MAKE-IT-FAB" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2018/birsak-2017-dpe/", "__class": "Publication" }, { "id": "Birsak2018-SA", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "String Art: Towards Computational Fabrication of String Images", "date": "2018-04", "abstract": "In this paper we propose a novel method for the automatic computation and digital fabrication of artistic string images. String\nart is a technique used by artists for the creation of abstracted images which are composed of straight lines of strings ten-\nsioned between pins distributed on a frame. Together the strings fuse to a perceptible image. Traditionally, artists craft such\nimages manually in a highly sophisticated and tedious design process. To achieve this goal fully automatically we propose a\ncomputational setup driven by a discrete optimization algorithm which takes an ordinary picture as input and converts it into\na connected graph of strings that tries to reassemble the input image best possibly. Furthermore, we propose a hardware setup\nfor automatic digital fabrication of these images using an industrial robot that spans the strings. Finally, we demonstrate the\napplicability of our approach by generating and fabricating a set of real string art images.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 836, "image_height": 411, "name": "Birsak2018-SA-image.png", "type": "image/png", "size": 437058, "path": "Publication:Birsak2018-SA", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 1063, 194, 844 ], "date_from": "2018-04-16", "date_to": "2018-04-20", "doi": "10.1111/cgf.13359", "event": "EUROGRAPHICS 2018", "journal": "Computer Graphics Forum (Proc. EUROGRAPHICS 2018)", "lecturer": [ 836 ], "location": "Delft, The Netherlands", "number": "2", "open_access": "yes", "pages": "accepted", "pages_from": "263", "pages_to": "274", "volume": "37", "research_areas": [ "Fabrication", "Modeling" ], "keywords": [], "weblinks": [ { "href": "https://github.com/Exception1984/StringArt", "caption": "Source Code", "description": null, "main_file": 0 } ], "files": [ { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 836, "image_height": 411, "name": "Birsak2018-SA-image.png", "type": "image/png", "size": 437058, "path": "Publication:Birsak2018-SA", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-image:thumb{{size}}.png" }, { "description": "preprint", "filetitle": "preprint", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Birsak2018-SA-preprint.pdf", "type": "application/pdf", "size": 11581681, "path": "Publication:Birsak2018-SA", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-preprint:thumb{{size}}.png" }, { "description": null, "filetitle": "slides", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Birsak2018-SA-slides.pptx", "type": "application/vnd.openxmlformats-officedocument.presentationml.presentation", "size": 783112566, "path": "Publication:Birsak2018-SA", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-slides.pptx", "thumb_image_sizes": [] }, { "description": null, "filetitle": "video", "main_file": false, "use_in_gallery": false, "access": "public", "name": "Birsak2018-SA-video.mp4", "type": "video/mp4", "size": 326776401, "path": "Publication:Birsak2018-SA", "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-video.mp4", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/Birsak2018-SA-video:video.mp4" } ], "projects_workgroups": [ "MAKE-IT-FAB" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2018/Birsak2018-SA/", "__class": "Publication" }, { "id": "musialski_2016_sosp", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Non-Linear Shape Optimization Using Local Subspace Projections", "date": "2016", "abstract": "In this paper we present a novel method for non-linear shape optimization of 3d objects given by their surface representation. Our method takes advantage of the fact that various shape properties of interest give rise to underdetermined design spaces implying the existence of many good solutions. Our algorithm exploits this by performing iterative projections of the problem to local subspaces where it can be solved much more efficiently using standard numerical routines.\n\nWe demonstrate how this approach can be utilized for various shape optimization tasks using different shape parameterizations. In particular, we show how to efficiently optimize natural frequencies, mass properties, as well as the structural yield strength of a solid body. Our method is flexible, easy to implement, and very fast.", "authors_et_al": false, "substitute": null, "main_image": { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1774, "image_height": 1024, "name": "musialski_2016_sosp-image.png", "type": "image/png", "size": 1030436, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 844, 1090, 1063, 836, 193, 1243 ], "date_from": "2016-07-24", "date_to": "2016-07-28", "doi": "10.1145/2897824.2925886", "event": "ACM SIGGRAPH 2016", "issn": "0730-0301", "journal": "ACM Transactions on Graphics", "lecturer": [ 844, 1090 ], "location": "Anaheim, CA, USA", "number": "4", "pages_from": "87:1", "pages_to": "87:13", "volume": "35", "research_areas": [ "Fabrication", "Geometry" ], "keywords": [], "weblinks": [ { "href": "http://doi.acm.org/10.1145/2897824.2925886", "caption": "doi", "description": null, "main_file": 0 } ], "files": [ { "description": "MATLAB demo code of subspace projection", "filetitle": "code", "main_file": false, "use_in_gallery": false, "access": "public", "name": "musialski_2016_sosp-code.zip", "type": "application/octet-stream", "size": 2180501, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-code.zip", "thumb_image_sizes": [] }, { "description": null, "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 1774, "image_height": 1024, "name": "musialski_2016_sosp-image.png", "type": "image/png", "size": 1030436, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-image:thumb{{size}}.png" }, { "description": "paper, full resolution", "filetitle": "paper_25MB", "main_file": false, "use_in_gallery": false, "access": "public", "name": "musialski_2016_sosp-paper_25MB.pdf", "type": "application/pdf", "size": 27147489, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-paper_25MB.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-paper_25MB:thumb{{size}}.png" }, { "description": "paper, low resolution", "filetitle": "paper_3MB", "main_file": true, "use_in_gallery": false, "access": "public", "name": "musialski_2016_sosp-paper_3MB.pdf", "type": "application/pdf", "size": 2640714, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-paper_3MB.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-paper_3MB:thumb{{size}}.png" }, { "description": "[150 KB]", "filetitle": "supplemental", "main_file": true, "use_in_gallery": false, "access": "public", "name": "musialski_2016_sosp-supplemental.pdf", "type": "application/pdf", "size": 154825, "path": "Publication:musialski_2016_sosp", "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-supplemental.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/musialski_2016_sosp-supplemental:thumb{{size}}.png" } ], "projects_workgroups": [ "MAKE-IT-FAB" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2016/musialski_2016_sosp/", "__class": "Publication" }, { "id": "musialski-2015-souos", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Reduced-Order Shape Optimization Using Offset Surfaces", "date": "2015-08", "abstract": "Given the 2-manifold surface of a 3d object, we propose a novel method for the computation of an offset surface with varying thickness such that the solid volume between the surface and its offset satisfies a set of prescribed constraints and at the same time minimizes a given objective functional. Since the constraints as well as the objective functional can easily be adjusted to specific application requirements, our method provides a flexible and powerful tool for shape optimization. We use manifold harmonics to derive a reduced-order formulation of the optimization problem, which guarantees a smooth offset surface and speeds up the computation independently from the input mesh resolution without affecting the quality of the result. The constrained optimization problem can be solved in a numerically robust manner with commodity solvers. Furthermore, the method allows simultaneously optimizing an inner and an outer offset in order to increase the degrees of freedom. We demonstrate our method in a number of examples where we control the physical mass properties of rigid objects for the purpose of 3d printing. 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USA", "number": "4", "pages_from": "102:1", "pages_to": "102:9", "volume": "34", "research_areas": [ "Fabrication" ], "keywords": [ "reduced-order models", "shape optimization", "computational geometry", "geometry processing", "physical mass properties" ], "weblinks": [ { "href": "http://dl.acm.org/citation.cfm?id=2766955", "caption": null, "description": null, "main_file": 0 } ], "files": { "0": { "description": "additional", "filetitle": "additional", "main_file": true, "use_in_gallery": false, "access": "public", "name": "musialski-2015-souos-additional.pdf", "type": "application/pdf", "size": 171083, "path": "Publication:musialski-2015-souos", "url": "https://www.cg.tuwien.ac.at/research/publications/2015/musialski-2015-souos/musialski-2015-souos-additional.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2015/musialski-2015-souos/musialski-2015-souos-additional:thumb{{size}}.png" }, "1": { "description": 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"thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2015/musialski-2015-souos/musialski-2015-souos-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2015/musialski-2015-souos/musialski-2015-souos-video:video.mp4" } }, "projects_workgroups": [ "MAKE-IT-FAB" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2015/musialski-2015-souos/", "__class": "Publication" }, { "id": "birsak-2014-agtb", "type_id": "journalpaper", "tu_id": null, "repositum_id": null, "title": "Automatic Generation of Tourist Brochures", "date": "2014-04", "abstract": "We present a novel framework for the automatic generation of tourist brochures that include routing instructions and additional information presented in the form of so-called detail lenses.\nThe first contribution of this paper is the automatic creation of layouts for the brochures. Our approach is based on the minimization of an energy function that combines multiple goals: positioning of the lenses as close as possible to the corresponding region shown in an overview map, keeping the number of lenses low, and an efficient numbering of the lenses.\nThe second contribution is a route-aware simplification of the graph of streets used for traveling between the points of interest (POIs). This is done by reducing the graph consisting of all shortest paths through the minimization of an energy function. The output is a subset of street segments that enable traveling between all the POIs without considerable detours, while at the same time guaranteeing a clutter-free visualization.\n\nVideo: http://www.youtube.com/watch?v=t3w7uxzSR-Y", "authors_et_al": false, "substitute": null, "main_image": { "description": "image", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1063, "image_height": 553, "name": "birsak-2014-agtb-image.png", "type": "image/png", "size": 497017, "path": "Publication:birsak-2014-agtb", "url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 844, 194, 193 ], "date_from": "2014-04-07", "date_to": "2014-04-11", "event": "EUROGRAPHICS 2014", "issn": "1467-8659", "journal": "Computer Graphics Forum (Proceedings of EUROGRAPHICS 2014)", "lecturer": [ 836 ], "location": "Strasbourg, France", "number": "2", "pages_from": "449", "pages_to": "458", "volume": "33", "research_areas": [ "InfoVis" ], "keywords": [], "weblinks": [ { "href": "http://onlinelibrary.wiley.com/doi/10.1111/cgf.12333/abstract", "caption": null, "description": null, "main_file": 0 } ], "files": [ { "description": "example brochures", "filetitle": "examples", "main_file": false, "use_in_gallery": false, "access": "public", "name": "birsak-2014-agtb-examples.rar", "type": "application/x-rar", "size": 16542177, "path": "Publication:birsak-2014-agtb", "url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-examples.rar", "thumb_image_sizes": [] }, { "description": "image", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1063, 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"https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-slides.pptx", "thumb_image_sizes": [] }, { "description": "GUI Video", "filetitle": "video", "main_file": true, "use_in_gallery": false, "access": "public", "preview_image_width": 1280, "preview_image_height": 720, "name": "birsak-2014-agtb-video.mp4", "type": "video/mp4", "size": 47818568, "path": "Publication:birsak-2014-agtb", "preview_name": "birsak-2014-agtb-video:preview.png", "preview_type": "image/jpeg", "preview_size": 14949, "url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-video.mp4", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-video:thumb{{size}}.png", "video_mp4": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/birsak-2014-agtb-video:video.mp4" } ], "projects_workgroups": [ "Photo-Guide" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2014/birsak-2014-agtb/", "__class": "Publication" }, { "id": "birsak-2013-sta", "type_id": "inproceedings", "tu_id": null, "repositum_id": null, "title": "Seamless Texturing of Archaeological Data", "date": "2013-10", "abstract": "In this paper we propose a framework for out-of-core real-time rendering of high-quality textured archaeological data-sets. Our input is a triangle mesh and a set of calibrated and registered photographs. Our system performs the actual mapping of the photos to the mesh for high-quality reconstructions, which is a task referred to as the labeling problem. Another problem of such mappings are seams that arise on junctions between triangles that contain information from different photos. These are are approached with blending methods, referred to as leveling. We address both problems and introduce a novel labeling approach based on occlusion detection using depth maps that prevents texturing of parts of the model with images that do not contain the expected region. Moreover, we propose an improved approach for seam-leveling that penalizes too large values and helps to keep the resulting colors in a valid range. For high-performance visualization of the 3D models with a huge amount of textures, we make use of virtual texturing, and present an application that generates the needed texture atlas in significantly less time than existing scripts. Finally, we show how the mentioned components are integrated into a visualization application for digitized archaeological site.", "authors_et_al": false, "substitute": null, "main_image": { "description": "thumb", "filetitle": "thumb", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 652, "name": "birsak-2013-sta-thumb.jpg", "type": "image/jpeg", "size": 123764, "path": "Publication:birsak-2013-sta", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumb.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumb:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 844, 865, 193 ], "booktitle": "Digital Heritage International Congress (DigitalHeritage), 2013", "date_from": "2013-10-28", "date_to": "2013-11-01", "isbn": "978-1-4799-3168-2 ", "lecturer": [ 836 ], "location": "Marseille, France", "note": "DOI: 10.1109/DigitalHeritage.2013.6743749", "pages_from": "265", "pages_to": "272 ", "publisher": "IEEE", "research_areas": [ "Rendering" ], "keywords": [ "digital cultural heritage", "out-of-core real-time rendering", "seamless texturing", "virtual texturing" ], "weblinks": [], "files": [ { "description": "paper draft", "filetitle": "preprint", "main_file": true, "use_in_gallery": false, "access": "public", "name": "birsak-2013-sta-preprint.pdf", "type": "application/pdf", "size": 2939089, "path": "Publication:birsak-2013-sta", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-preprint.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-preprint:thumb{{size}}.png" }, { "description": "thumb", "filetitle": "thumb", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1024, "image_height": 652, "name": "birsak-2013-sta-thumb.jpg", "type": "image/jpeg", "size": 123764, "path": "Publication:birsak-2013-sta", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumb.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumb:thumb{{size}}.png" }, { "description": "thumbnail", "filetitle": "thumbnail", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1282, "image_height": 712, "name": "birsak-2013-sta-thumbnail.jpg", "type": "image/jpeg", "size": 184340, "path": "Publication:birsak-2013-sta", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumbnail.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/birsak-2013-sta-thumbnail:thumb{{size}}.png" } ], "projects_workgroups": [ "Photo-Guide" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2013/birsak-2013-sta/", "__class": "Publication" }, { "id": "x-mas-2013", "type_id": "xmascard", "tu_id": null, "repositum_id": null, "title": "X-Mas Card 2013", "date": "2013", "abstract": "With our Season’s Greetings we are sending you an \nautomatically generated brochure that provides \nrouting information for several of Vienna’s Christ-\nmas markets. In the middle you can see an overview \nmap that provides approximate locations as well as \nrouting information. Around the map you can see \nso-called ‘detail lenses’ that provide more exact \nmaps and routing as well as names and photographs.\nAll elements are arranged using a binary integer \nprogram (BIP), whose goal is the positioning of the \ndetail lenses as close as possible to their correspond-\ning markers in the overview map.", "authors_et_al": false, "substitute": null, "main_image": { "description": "x-card 2013", "filetitle": "image", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 2480, "image_height": 1753, "name": "x-mas-2013-image.png", "type": "image/png", "size": 7535044, "path": "Publication:x-mas-2013", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 844 ], "research_areas": [ "Rendering" ], "keywords": [ "x-mas card" ], "weblinks": [], "files": [ { "description": "x-card", "filetitle": "card", "main_file": true, "use_in_gallery": false, "access": "public", "name": "x-mas-2013-card.pdf", "type": "application/pdf", "size": 15439799, "path": "Publication:x-mas-2013", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-card.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-card:thumb{{size}}.png" }, { "description": "x-card 2013", "filetitle": "image", "main_file": true, "use_in_gallery": true, "access": "public", "image_width": 2480, "image_height": 1753, "name": "x-mas-2013-image.png", "type": "image/png", "size": 7535044, "path": "Publication:x-mas-2013", "url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/x-mas-2013-image:thumb{{size}}.png" } ], "projects_workgroups": [ "rend", "xmas" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2013/x-mas-2013/", "__class": "Publication" }, { "id": "Birsak-Michael-2012", "type_id": "masterthesis", "tu_id": null, "repositum_id": null, "title": "Coloring Meshes of Archaeological Datasets", "date": "2012-05", "abstract": "Archaeological monuments are nowadays preserved for future generations by means of digitization. To this end, laser scanners in conjunction with registered cameras are used to gather both the geometric and the color information. The geometry is often\r\ntriangulated to allow a continuous mapping of the photos onto the geometry. The color mapping for high-quality reconstructions of parts of the models is not without problems.\r\nIn practice, the photos overlap. Now, assuming that a particular triangle receives color information from just one photo, there is a huge number of possibilities to map the photos onto the triangles. This labeling problem is already covered in literature. There\r\nare also approaches for the leveling of the remaining seams that arise because of the different lighting situations during the exposure of the photos.\r\nIn this thesis, we improve common labeling approaches by the introduction of an accurate geometry-based occlusion detection. An octree is used to quickly filter out parts of the model that do not come into consideration for an occlusion anyway. The occlusion detection prevents texturing of parts of the model with image material that\r\ndoes not contain the expected region, but the colors of an occluder.\r\n\r\nFurther, a proposed approach for seam leveling on meshes is improved by the introduction of a new term into the least squares problem that corresponds to the proposed leveling approach. This new term penalizes big leveling function values and helps to keep the leveled color values in the valid range. For better filtering results, we improve the proposed calculation of a 1-pixel wide boundary around the leveled patches by the introduction of outline normals for a user-defined scale of the patches.\r\n\r\nFor easier manual editing of remaining artifacts in the photos, we introduce an application for the generation of alpha masks that indicate regions of the photos that are used for texturing of the 3D model.\r\n\r\nFor the high-performance visualization of 3D models with a huge amount of textures, we make use of virtual texturing. We present an application that generates the needed data structures atlas and tile store in significantly less time than existing scripts.\r\n\r\nFinally, we show how all the mentioned functionalities are integrated into a visualization application that can support a graphic artist in the post-processing of a digitized\r\narchaeological monument.", "authors_et_al": false, "substitute": null, "main_image": { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1915, "image_height": 1041, "name": "Birsak-Michael-2012-image.jpg", "type": "image/jpeg", "size": 191449, "path": "Publication:Birsak-Michael-2012", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836 ], "date_start": "2010-08-11", "matrikelnr": "0525386", "supervisor": [ 193 ], "research_areas": [], "keywords": [], "weblinks": [], "files": [ { "description": "", "filetitle": "image", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 1915, "image_height": 1041, "name": "Birsak-Michael-2012-image.jpg", "type": "image/jpeg", "size": 191449, "path": "Publication:Birsak-Michael-2012", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-image.jpg", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-image:thumb{{size}}.png" }, { "description": "", "filetitle": "Poster", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Birsak-Michael-2012-Poster.pdf", "type": "application/pdf", "size": 3123114, "path": "Publication:Birsak-Michael-2012", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-Poster.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-Poster:thumb{{size}}.png" }, { "description": "", "filetitle": "Thesis", "main_file": true, "use_in_gallery": false, "access": "public", "name": "Birsak-Michael-2012-Thesis.pdf", "type": "application/pdf", "size": 25061200, "path": "Publication:Birsak-Michael-2012", "url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-Thesis.pdf", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/Birsak-Michael-2012-Thesis:thumb{{size}}.png" } ], "projects_workgroups": [ "rend" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2012/Birsak-Michael-2012/", "__class": "Publication" }, { "id": "BirsakHanzl-2009", "type_id": "studentproject", "tu_id": null, "repositum_id": null, "title": "SolarTransporter", "date": "2009", "abstract": "The aim of this project was the development of the Android game SolarTransporter and its public release. SolarTransporter is a 3D game based on the Android plattform.\r\n\r\nThe aim of the game is to transport a given number of passengers to their favoured positions in 3 minutes per level. There are 7 levels, 7 bonus levels, many objects like asteroids and 2 highscores. Use the accelerometer to control the transporter!\r\n\r\nThe full documentation is available at:\r\nhttp://www.cg.tuwien.ac.at/courses/projekte_old/vis/finished/MBirsakMHanzl/", "authors_et_al": false, "substitute": null, "main_image": { "description": "title image", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 180, "image_height": 120, "name": "BirsakHanzl-2009-image.png", "type": "image/png", "size": 18277, "path": "Publication:BirsakHanzl-2009", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-image:thumb{{size}}.png" }, "sync_repositum_override": null, "repositum_presentation_id": null, "authors": [ 836, 837 ], "supervisor": [ 488 ], "research_areas": [], "keywords": [ "Android", "3D Game", "OpenGL ES" ], "weblinks": [], "files": [ { "description": "title image", "filetitle": "image", "main_file": false, "use_in_gallery": false, "access": "public", "image_width": 180, "image_height": 120, "name": "BirsakHanzl-2009-image.png", "type": "image/png", "size": 18277, "path": "Publication:BirsakHanzl-2009", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-image.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-image:thumb{{size}}.png" }, { "description": "presentation", "filetitle": "presentation", "main_file": false, "use_in_gallery": false, "access": "public", "name": "BirsakHanzl-2009-presentation.pptx", "type": "application/zip", "size": 1878276, "path": "Publication:BirsakHanzl-2009", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-presentation.pptx", "thumb_image_sizes": [] }, { "description": "screenshot", "filetitle": "screenshot1", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 320, "image_height": 480, "name": "BirsakHanzl-2009-screenshot1.png", "type": "image/png", "size": 28441, "path": "Publication:BirsakHanzl-2009", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-screenshot1.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-screenshot1:thumb{{size}}.png" }, { "description": "screenshot", "filetitle": "screenshot2", "main_file": false, "use_in_gallery": true, "access": "public", "image_width": 320, "image_height": 480, "name": "BirsakHanzl-2009-screenshot2.png", "type": "image/png", "size": 42922, "path": "Publication:BirsakHanzl-2009", "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-screenshot2.png", "thumb_image_sizes": [ 16, 64, 100, 175, 300, 600 ], "thumb_url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/BirsakHanzl-2009-screenshot2:thumb{{size}}.png" } ], "projects_workgroups": [ "vis" ], "url": "https://www.cg.tuwien.ac.at/research/publications/2009/BirsakHanzl-2009/", "__class": "Publication" } ]