The template update problem.

Matthews, Iain; Ishikawa, Takahiro; Baker, Simon · IEEE Trans Pattern Anal Mach Intell · 2004

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Abstract

Template tracking dates back to the 1981 Lucas-Kanade algorithm. One question that has received very little attention, however, is how to update the template so that it remains a good model of the tracked object. We propose a template update algorithm that avoids the "drifting" inherent in the naive algorithm.

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