Journal
INTERNATIONAL JOURNAL OF COMPUTER VISION
Volume 57, Issue 2, Pages 91-105Publisher
SPRINGER
DOI: 10.1023/B:VISI.0000013084.09631.d8
Keywords
motion estimation; optical flow; segmentation; occlusion; variational methods
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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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