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Manifold surface reconstruction of an environment from sparse Structure-from-Motion data
Authors:Maxime Lhuillier  Shuda Yu
Affiliation:Institut Pascal (ex. LASMEA), UMR 6602, CNRS/UBP/IFMA, Campus Universitaire des Cézeaux, 63171 Aubière Cedex, France
Abstract:The majority of methods for the automatic surface reconstruction of an environment from an image sequence have two steps: Structure-from-Motion and dense stereo. From the computational standpoint, it would be interesting to avoid dense stereo and to generate a surface directly from the sparse cloud of 3D points and their visibility information provided by Structure-from-Motion. The previous attempts to solve this problem are currently very limited: the surface is non-manifold or has zero genus, the experiments are done on small scenes or objects using a few dozens of images. Our solution does not have these limitations. Furthermore, we experiment with hand-held or helmet-held catadioptric cameras moving in a city and generate 3D models such that the camera trajectory can be longer than one kilometer.
Keywords:2-Manifold reconstruction  3D Delaunay triangulation  Steiner vertices  Complexity analysis  Sparse point cloud  Structure-from-Motion
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