Patent ID: 7142600
Filing Date: 2006-11-28
Classification: G06T,H04N

Abstract:
1. An object tracker comprising: a backward motion estimator, receiving a base object location in a base frame, for generating backward motion vectors representing displacements from regions in a current frame to best-matching regions in the base frame; an object-location generator that generates a current object location for the current frame by including regions from the current frame that match best-matching regions in the base frame that are within the base object location and including sub-regions in the current frame matching best-matching sub-regions that are within the base object location; a forward motion estimator, receiving the current object location in the current frame, for generating forward motion vectors representing displacements to best-matching regions in a second frame from the current frame; an occlusion detector, receiving the forward motion vectors, the occlusion detector comprising: