逆解析手法による3次元人体運動の再構成(機械力学,計測,自動制御)

概要

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A system used to reconstruct 3D human movement from a stream of 2D input images is developed. The system determines the 3D shape and motion of the human body by fitting a simple skeleton model to markers in the 2D image. The fitting is carried out using a nonlinear optimization approach. This optimization is essentially ill-conditioned because depth information cannot be obtained from the 2D image. In order to overcome this problem, the inverse analysis technique. which used the following four a priori information is applied. 1 Human body can be represented by versatile skeleton model. 2 Joint angles are limited. 3 Human motion is smooth. 4 Humans maintain balance in slow motion. We reconstructed human movement from real video images using this method in order to demonstrate its applicability.
社団法人日本機械学会の論文
1997-04-25