caa a22 4500 467914885 CHVBK 20180406152859.0 cr unu---uuuuu 170328e20060201xx s 000 0 eng 10.1007/s11263-005-3958-5 doi (NATIONALLICENCE)springer-10.1007/s11263-005-3958-5 Non-Rigid Stereo Factorization [Elektronische Daten] [Alessio Del Bue, Lourdes Agapito] In this paper we address the problem of recovering 3D non-rigid structure from a sequence of images taken with a stereo pair. We have extended existing non-rigid factorization algorithms to the stereo camera case and presented an algorithm to decompose the measurement matrix into the motion of the left and right cameras and the 3D shape, represented as a linear combination of basis-shapes. The added constraints in the stereo camera case are that both cameras are viewing the same structure and that the relative orientation between both cameras is fixed. Our focus in this paper is on the recovery of flexible 3D shape rather than on the correspondence problem. We propose a method to compute reliable 3D models of deformable structure from stereo images. Our experiments with real data show that improved reconstructions can be achieved using this method. The algorithm includes a non-linear optimization step that minimizes image reprojection error and imposes the correct structure to the motion matrix by choosing an appropriate parameterization. We show that 3D shape and motion estimates can be successfully disambiguated after bundle adjustment and demonstrate this on synthetic and real image sequences. While this optimization step is proposed for the stereo camera case, it can be readily applied to the case of non-rigid structure recovery using a monocular video sequence. Springer Science + Business Media, Inc., 2006 non-rigid structure from motion nationallicence non-linear optimization nationallicence stereo nationallicence deformable model nationallicence Del Bue Alessio Department of Computer Science, Queen Mary, University of London, E1 4NS, London, UK aut Agapito Lourdes Department of Computer Science, Queen Mary, University of London, E1 4NS, London, UK aut International Journal of Computer Vision Kluwer Academic Publishers 66/2(2006-02-01), 193-207 0920-5691 66:2<193 2006 66 11263 https://doi.org/10.1007/s11263-005-3958-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11263-005-3958-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Del Bue Alessio Department of Computer Science, Queen Mary, University of London, E1 4NS, London, UK aut NATIONALLICENCE 700 1- Agapito Lourdes Department of Computer Science, Queen Mary, University of London, E1 4NS, London, UK aut NATIONALLICENCE 773 0- International Journal of Computer Vision Kluwer Academic Publishers 66/2(2006-02-01), 193-207 0920-5691 66:2<193 2006 66 11263 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer