Title :
Polyconvexification of the multi-label optical flow problem
Author :
Papadakis, N. ; Baeza, A. ; Gargallo, P. ; Caselles, V.
Author_Institution :
Image Group - Barcelona Media, Barcelona, Spain
Abstract :
In this paper the problem of optical flow and occlusion mask estimation is aborded. To that end, we consider a multi-label representation of the optical flow and we define an energy that models the problem. The convexification of the energy and its minimization with an iterative algorithm are studied. Our algorithm is implemented in GPU, since each pixel can be processed in parallel. From our experiments, the relation between the quality of the results obtained and computing time seems to be very promising.
Keywords :
computer graphics; image sequences; iterative methods; GPU; iterative algorithm; multilabel optical flow; multilabel representation; occlusion mask estimation; polyconvexification; Adaptive optics; Estimation; Integrated optics; Nonlinear optics; Optical imaging; Optimization; Pixel; occlusion; optical flow; total variation;
Conference_Titel :
Image Processing (ICIP), 2010 17th IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4244-7992-4
Electronic_ISBN :
1522-4880
DOI :
10.1109/ICIP.2010.5652107