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Displacement Following of Hidden Objects in a Video Sequence

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Date
2004
Dewey
Probabilités et mathématiques appliquées
Sujet
motion estimation; optical flow; segmentation; occlusion; variational methods
Journal issue
International Journal of Computer Vision
Volume
57
Number
2
Publication date
2004
Article pages
91-105
Publisher
Springer
DOI
http://dx.doi.org/10.1023/B:VISI.0000013084.09631.d8
URI
https://basepub.dauphine.fr/handle/123456789/6765
Collections
  • CEREMADE : Publications
Metadata
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Author
Dibos, Françoise
Sanchez, Olivia
Type
Article accepté pour publication ou publié
Abstract (EN)
In a video sequence, computing the motion of an object requires the continuity of the apparent velocity field. This property does not hold when the object is hidden by an occlusion during its motion. The minimization of an energy functional leads to a simple algorithm which allows the recovery of the most likely trajectory of the occluded object from optical flow data at the border of the occlusion. Optical flow used for developing our method is an improvement on any variational technique of computing it. This improvement is based on a multichannel segmentation.

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