DocumentCode :
1463488
Title :
Adaptive template matching algorithm based on swad for robust target tracking
Author :
Di Caterina, Gaetano ; Soraghan, John J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Volume :
48
Issue :
5
fYear :
2012
Firstpage :
261
Lastpage :
262
Abstract :
The sum of absolute differences (SAD) is widely used in video coding and disparity computation for its simplicity. However, SAD is not very common in tracking applications owing to issues like partial occlusion and target changes, which can dramatically affect its performance. Presented is a novel adaptive template matching algorithm for target tracking, based on a sum of weighted absolute differences (SWAD). The target template is updated using an infinite impulse response filter, while a weighting kernel is adopted to reduce the effects of partial occlusion. Simulation results demonstrate that the proposed tracker outperforms conventional SAD in terms of efficiency and accuracy, and its performance is comparable with more complex trackers, such as the mean shift algorithm.
Keywords :
IIR filters; image matching; target tracking; SWAD; adaptive template matching algorithm; disparity computation; infinite impulse response filter; mean shift algorithm; partial occlusion; robust target tracking; sum-of-weighted absolute differences; target changes; target template; video coding; weighting kernel;
fLanguage :
English
Journal_Title :
Electronics Letters
Publisher :
iet
ISSN :
0013-5194
Type :
jour
DOI :
10.1049/el.2011.3888
Filename :
6164314
Link To Document :
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