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http://dx.doi.org/10.6109/jkiice.2015.19.5.1199

Automatic Pose similarity Computation of Motion Capture Data Through Topological Analysis  

Sung, Mankyu (Game&Mobile Engineering Dept., Keimyung University)
Abstract
This paper introduces an algorithm for computing similarity between two poses in the motion capture data with different scale of skeleton, different number of joints and different joint names. The proposed algorithm first performs the topological analysis on the skeleton hierarchy for classifying the joints into more meaningful groups. The global joints positions of each joint group then are aggregated into a point cloud. The number of joints and their positions are automatically adjusted in this process. Once we have two point clouds, the algorithm finds an optimal 2D transform matrix that transforms one point cloud to the other as closely as possible. Then, the similarity can be obtained by summing up all distance values between two points clouds after applying the 2D transform matrix. After some experiment, we found that the proposed algorithm is able to compute the similarity between two poses regardless of their scale, joint name and the number of joints.
Keywords
3D Character Animation; Motion Capture; Pose Similarity;
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