Presentation	2006/1/3 NOD AND SHAKE DETECTION USING CORRELATION AT VELOCITY PEAKS(International Workshop on Advanced Image Technology 2006) Miki Yamada, Osamu Yamaguchi,
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Abstract(in English)	This paper proposes a new algorithm for head gesture detection using the correlation between the velocity vector peaks of coordinate values about a head motion. The conventional methods using hidden Markov models detects a down-motion or up-motion independently. However, our algorithm does not detect it independently. The algorithm detects a head nod by observing the angle (or inner product) between the motion vector of a down-motion and that of a following up-motion. Therefore, a slant nod motion can be properly detected. We built a head nod and shake detection system using an automatic face and facial feature detector, and confirmed the effectiveness of the algorithm. This system can process 20 frames per second on a Pentium 4 3GHz PC.
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Paper #	IE2005-192
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Committee	IE
Conference Date	2006/1/3(1days)
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Registration To	Image Engineering (IE)
Language	ENG
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Title (in English)	NOD AND SHAKE DETECTION USING CORRELATION AT VELOCITY PEAKS(International Workshop on Advanced Image Technology 2006)
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1st Author's Name	Miki Yamada
1st Author's Affiliation	Multimedia Laboratory, Corporate R&D Center, Toshiba Corporation()
2nd Author's Name	Osamu Yamaguchi
2nd Author's Affiliation	Multimedia Laboratory, Corporate R&D Center, Toshiba Corporation
Date	2006/1/3
Paper #	IE2005-192
Volume (vol)	vol.105
Number (no)	501
Page	pp.pp.-
#Pages	6
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