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Improving Border Localization of Multi-Baseline Stereo Using Border-Cut
Abstract This paper presents a novel algorithm that improves the localization of disparity discontinuities of disparity maps obtained by multi-baseline stereo. Rather than associating a disparity label to every pixel of a disparity map, it associates a position to every … Continue reading
Calibration of Cameras with Radially Symmetric Distortion
Abstract We present algorithms for plane-based calibration of general radially distorted cameras. By this we understand cameras that have a distortion center and an optical axis such that the projection rays of pixels lying on a circle centered on the … Continue reading
Posted in Jean-Philippe Tardif, Martin Trudeau, PAMI, Peter Sturm, Sébastien Roy
Tagged calibration, catadioptric, fisheye, omnidirectionnel
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Non-uniform Hierarchical Geo-consistency for Multi-baseline Stereo
Abstract We propose a new and flexible hierarchical multi-baseline stereo algorithm that features a non-uniform spatial decomposition of the disparity map. The visibility computation and refinement of the disparity map are integrated into a single iterative framework that does not … Continue reading
Posted in CRV, Marc-Antoine Drouin, Martin Trudeau, Sébastien Roy
Tagged discontinuités de profondeur, multi-caméra, pyramides, stéréo
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(English) Improving Border Localization of Multi-Baseline Stereo Using Border-Cut
Abstract This paper presents a novel algorithm that improves the localization of disparity discontinuities of disparity maps obtained by multi-baseline stereo. Rather than associating a disparity label to every pixel of a disparity map, it associates a position to every … Continue reading
(English) Fast Multiple-baseline Stereo with Occlusion
Abstract This paper presents a new and fast algorithm for multi-baseline stereo designed to handle the occlusion problem. The algorithm is a hybrid between fast heuristic occlusion overcoming algorithms that precompute an approximate visibility and slower methods that use correct … Continue reading
Posted in 3DIM, Marc-Antoine Drouin, Martin Trudeau, Sébastien Roy
Tagged multi-baseline, occlusions, programmation dynamique, stéréo, visibilité
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(English) Multi-projectors for arbitrary surfaces without explicit calibration nor reconstruction
Abstract This paper presents a new approach allowing one or more projectors to display an undistorted image on a surface of unknown geometry. To achieve this, a single camera is used to capture the viewer’s perspective of the projection surface. … Continue reading
Posted in 3DIM, Jean-Philippe Tardif, Martin Trudeau, Sébastien Roy
Tagged lumière structurée, projecteur-caméra
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(English) Energy Minimization with Linear Smoothness Term: A Proof of Uniqueness of Solution for an Undirected Graph Formulation
Abstract (see paper) Reference Martin Trudeau and Sébastien Roy, Energy Minimization with Linear Smoothness Term: A Proof of Uniqueness of Solution for an Undirected Graph Formulation, Technical report DIRO, 15-2-2001 (final TR number not assigned yet). Document flowproof2001.pdf


