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2015
IEEE

Repeatable Local Coordinate Frames for 3D Human Motion Tracking: From Rigid to Non-rigid

4 years 2 months ago
Repeatable Local Coordinate Frames for 3D Human Motion Tracking: From Rigid to Non-rigid
Local coordinate frame (LCF) is a key component deployed in most 3D descriptors for invariant representations of 3D surfaces. This paper addresses the problem of attaching a LCF to non-rigidly deforming objects, in particular humanoid surfaces, with the application of recovering correspondences between the template model and input data for 3D human motion tracking. We facilitate this by extending two current LCF paradigms for rigid surface matching to the non-rigid case. Such an adaptation is motivated by the assumption that interpolating locally rigid movements often amounts to smooth globally non-rigid deformations. Both approaches leverage spatial distributions, based on signed distance and principal component analysis, respectively. Furthermore, we advocate a new strategy that incorporates multiple LCF candidates. This way we relax the requirement of perfectly repeatable LCFs, and yet still achieve improved data-model associations. Ground truth for non-rigid LCFs are synthetically...
Chun-Hao Huang, Federico Tombari, Nassir Navab
Added 27 Mar 2016
Updated 27 Mar 2016
Type Journal
Year 2015
Where 3DIM
Authors Chun-Hao Huang, Federico Tombari, Nassir Navab
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