In object tracking, change of objects aspect is the most important cause of failure. This paper proposes a modified template matching approach to solve this problem without a priori leaming of object views. This method permits to track non-rigid objects in real-time by employing a weighted template which is dynamically updated and a hierarchlcal framework that iniegrates all the components of the tracker. The capability of the tracking system to handle partial occlusions and target distortions is demonstrated for several video sequences.
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