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Spatiotemporal descriptor for wide-baseline stereo reconstruction of non-rigid and ambiguous scenes

AuthorsTrulls, Eduard ; Sanfeliu, Alberto ; Moreno-Noguer, Francesc
Appearance descriptors
Issue Date2012
CitationComputer Vision – ECCV: 441-454 (2012)
AbstractThis paper studies the use of temporal consistency to match appear- ance descriptors and handle complex ambiguities when computing dynamic depth maps from stereo. Previous attempts have designed 3D descriptors over the space- time volume and have been mostly used for monocular action recognition, as they cannot deal with perspective changes. Our approach is based on a state-of-the-art 2D dense appearance descriptor which we extend in time by means of optical flow priors, and can be applied to wide-baseline stereo setups. The basic idea behind our approach is to capture the changes around a feature point in time instead of trying to describe the spatiotemporal volume. We demonstrate its effectiveness on very ambiguous synthetic video sequences with ground truth data, as well as real sequences.
DescriptionTrabajo presentado a la 12th European Conference on Computer Vision celebrado en Florencia del 7 al 13 de octubre de 2012.
Publisher version (URL)http://dx.doi.org/10.1007/978-3-642-33712-3_32
Identifiersdoi: 10.1007/978-3-642-33712-3_32
isbn: 978-3-642-33711-6
Appears in Collections:(IRII) Libros y partes de libros
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