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In this paper, a motion retrieval system is investigated from a multiple-instance learning view. In order to retrieve similar motion data, each human joint's motion clip is regarded as a bag, while each of its segments is regarded as an instance. First 3D temporal-spatial features and their keyspaces of each human joint are extracted. Then data driven decision trees based on ensemble multiple-instance are automatically constructed to reflect the influence of each point during the comparison of motion similarity. At last the method of multiple-instance retrieval is used to complete motion retrieval. Experimental results show that our approaches are effective for motion data retrieval.
Systems, Man and Cybernetics, 2006. SMC '06. IEEE International Conference on (Volume:5 )
Date of Conference: 8-11 Oct. 2006