Article ID Journal Published Year Pages File Type
442557 Computers & Graphics 2015 11 Pages PDF
Abstract

•A markerless approach to deform a human body template mesh by a point cloud.•A spectral based method that establishes correspondence between different human poses.•A variational approach for human body deformation and alignment.

We introduce a markerless approach to deform a quality human body template mesh from its original pose to a different pose specified by a point cloud. The point cloud may be noisy, incomplete, or even captured from a different person. In this approach, we first build coarse correspondences between the template mesh and the point cloud through a squeezed spectral embedding technique that exploits human body extremities. Based on these correspondences, we define the goal of non-rigid registration using an elastic energy functional and apply a discrete gradient flow to reduce the difference between a coarse control mesh and the point cloud. The deformed template mesh can then be obtained from the deformation of the control mesh using mean value coordinates afterwards. Our experiments show (see the supplementary video) that the approach is capable of equipping a mesh with the pose of a scanned point cloud data even if it is incomplete and noisy.

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Related Topics
Physical Sciences and Engineering Computer Science Computer Graphics and Computer-Aided Design
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