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Homeomorphic Alignment of Weighted Trees

Abstract : Motion capture, a currently active research area, needs estimation of the pose of the subject. For this purpose, we match the tree representation of the skeleton of the 3D shape to a pre-specified tree model. Unfortunately, the tree representation can contain vertices that split limbs in multiple parts, which do not allow a good match by usual methods. To solve this problem, we propose a new alignment, taking into account the homeomorphism between trees, rather than the isomorphism, as in prior works. Then, we develop several computationally efficient algorithms for reaching real-time motion capture.
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Submitted on : Thursday, March 22, 2012 - 2:33:43 PM
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Benjamin Raynal, Michel Couprie, Venceslas Biri. Homeomorphic Alignment of Weighted Trees. Pattern Recognition, Elsevier, 2010, 43 (8), pp.2937--2949. ⟨10.1016/j.patcog.2010.03.015⟩. ⟨hal-00681793⟩



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