论文信息 - 3D MOTION ESTIMATION OF HEAD AND SHOULDERS IN VIDEOPHONE SEQUENCES

3D MOTION ESTIMATION OF HEAD AND SHOULDERS IN VIDEOPHONE SEQUENCES

In this paper , an approach for 3D motion estima tion of head and shoulders of persons in video phone sequences is presented. Since head and shoulders are linked together by the neck, constraints for the motion of head and shoulders exist which are exploited to improve the motion estimation. In this paper , the human neck joint is modelled by a spherical joint between head and shoulders and its 3D position is calculated. Then, rotation and translation of the shoulders are esti mated and propagated to the head. Finally , a rotation of the head around the neck joint is estimated. The presented approach is applied to the video phone sequences Akiyo and Claire. Compared with an approach without using a neck joint, ana tomically correct positions of head and shoulders are estimated.

Markus Kampmann

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