Extraction of key postures using shape contexts

Authors:
Geum-Boon Lee;Wilfred O. Odoyo;Jeong-Nam Yeom;Beom-Joon Cho
Affiliations:
Department of Computer Engineering, Chosun University, Gwang-ju, Korea;Department of Computer Engineering, Chosun University, Gwang-ju, Korea;Department of Computer Engineering, Chosun University, Gwang-ju, Korea;Department of Computer Engineering, Chosun University, Gwang-ju, Korea
Venue:
ICACT'09 Proceedings of the 11th international conference on Advanced Communication Technology - Volume 2
Year:
2009

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Abstract

There has been steady effort to modelize or recognize human action in fields of computer visions or mechanical learning, which should lead to fruitful results. This study presents how to extract key postures that can explain human actions within video sequence. To detect key postures that can differentiate human actions significantly, we select key posture candidates using information entropy which is a global feature, and then during key posture matching using shape context, we can select critical key postures. The method proposed shows efficiency in the experimental results and will contribute to development of research by inferring human action through connection of key postures with respect to human action.