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2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'01) - Volume 2
Using occlusions to aid position estimation for visual motion capture
Kauai, Hawaii
December 08-December 14
ISBN: 0-7695-1272-0
Maurice Ringer, Cambridge University
Tom Drummond, Cambridge University
Joan Lasenby, Cambridge University
A new method for estimating the pose of a person in a marker-based visual motion capture system is presented. In such systems, certain markers are not detected at each time frame due to occlusion by the subject. It is proposed to estimate the person?s pose subject to the constraint that non-detected markers remain occluded and that detected markers remain visible. In this paper, the complete posterior PDF for the person?s pose is developed using the constraints mentioned above, as is a least squares solution for determining its maximum. It is shown that the new technique is able to correctly estimate a variety of poses in which many marker occlusions occur and in which typical motion capture systems fail.
Citation:
Maurice Ringer, Tom Drummond, Joan Lasenby, "Using occlusions to aid position estimation for visual motion capture," cvpr, vol. 2, pp.464, 2001 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'01) - Volume 2, 2001
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