Jeyakar, Jaideep and Babu, R Venkatesh and Ramakrishnan, KR (2008) Robust object tracking with background-weighted local kernels. In: Computer Vision and Image Understanding, 112 (3). pp. 296-309.
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Object tracking is critical to visual surveillance, activity analysis and event/gesture recognition. The major issues to be addressed in visual tracking are illumination changes, occlusion, appearance and scale variations. In this paper, we propose a weighted fragment based approach that tackles partial occlusion. The weights are derived from the difference between the fragment and background colors. Further, a fast and yet stable model updation method is described. We also demonstrate how edge information can be merged into the mean shift framework without having to use a joint histogram. This is used for tracking objects of varying sizes. Ideas presented here are computationally simple enough to be executed in real-time and can be directly extended to a multiple object tracking system.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Elsevier Science.|
|Keywords:||Mean shift;Object tracking;Kernel tracking.|
|Department/Centre:||Division of Electrical Sciences > Electrical Engineering|
|Date Deposited:||30 Oct 2009 08:43|
|Last Modified:||19 Sep 2010 04:57|
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