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IJAT Vol.8 No.3 pp. 376-387
doi: 10.20965/ijat.2014.p0376
(2014)

Paper:

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Hand Modeling and Motion Reconstruction for Individuals

Yui Endo, Mitsunori Tada, and Masaaki Mochimaru

National Institute of Advanced Industrial Science and Technology, 2-3-26 Aomi, Koto-ku, Tokyo 135-0064, Japan

Received:
December 1, 2013
Accepted:
February 20, 2014
Published:
May 5, 2014
Creative Commons License
Keywords:
digital human modeling, digital hand model, motion capture, joint center estimation, motion reconstruction
Abstract
In this paper, we propose a new method of reconstructing hand models for individuals including link structure models, homologous skin surface models and homologous tetrahedral mesh models in a reference posture. The skin surface model is defined as a threedimensional triangularmesh, obtained by deforming a template mesh so as to fit the landmark vertices to the corresponding marker positions obtained by a motion capture system. In this process, anatomical dimensions for the subject, manually measured by a caliper, are also used as the deformation constraints. As for the link structure model, the local coordinate system related to each link consists of the joint rotation center and the axes of joint rotation, which can be estimated based on the deformation of the skin surface of the template model relative to the one of the individual. By using obtained individual hand model, hand postures in a motion sequence are also reconstructed based on the landmark points and the corresponding marker positions obtained from the motion capture system. Virtual spring-damper models located between the landmarks and the markers are used in physically-based simulation for the posture reconstruction.
Cite this article as:
Y. Endo, M. Tada, and M. Mochimaru, “Hand Modeling and Motion Reconstruction for Individuals,” Int. J. Automation Technol., Vol.8 No.3, pp. 376-387, 2014.
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