An object tracking algorithm is proposed to overcome the problem that the sparse local invariance feature descriptor depends on the feature detection and always leads to failure. The proposed algorithm uses the dense descriptors correspondences. The dense descriptor flows of objects between consecutive frames are calculated
and object estimations are obtained by considering the spatial distribution and weights of dense flows. Then the weights of descriptors are updated according to the relation and the matching degree between the descriptor motion and the object motion. Qualitative and quantitative analyses on challenging benchmark image sequences show that the average tracking successes rate of the proposed algorithm is over 90% and the performance of the algorithm is better than the performances of several state-of-art methods that assume the constant brightness and template.
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