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Yearly Archives: Thursday September 1st, 2005
(English) A Maximum-Flow Approach to the Volumetric Reconstruction Problem
Abstract We present a 3D reconstruction technique based on the maximum-flow formulation. Starting with a set of calibrated images, we globally search for the most probable 3D model given the photoconsistency and the spatial continuity constraints. This search is done … Continue reading
Posted in BMVC, Catherine Proulx, Sébastien Roy
Tagged maximum-flow, modélisation 3D, reconstruction volumétrique
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(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) A MRF formulation for coded structured light
Abstract Multimedia projectors and cameras make possible the use of structured light to solve problems such as 3D reconstruction, disparity map computation and camera or projector calibration. Each projector displays patterns over a scene viewed by a camera, thereby allowing … Continue reading
Posted in 3DIM, Jean-Philippe Tardif, Sébastien Roy
Tagged champs aléatoires de Markov, lumière structurée, MRF
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(English) Geo-consistency for Wide Multi-Camera Stereo
Abstract This paper presents a new model to overcome the occlusion problems coming from wide baseline multiple camera stereo. Rather than explicitly modeling occlusions in the matching cost function, it detects occlusions in the depth map obtained from regular efficient … Continue reading
(English) Solving Motion Planes by Projection and Ring Integration
Abstract We present a new method to find motion planes in energy based and spatio-temporal derivative optical flow. Because our method makes few assumptions about the motion model and the number of motions present in the sampling window, we are … Continue reading
