Automatic animation skeleton extraction method based on vertex gauss sphere representation

Terumasa Aoki, Vicky Sintunata

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Skeletonization, or automatic skeleton extraction, is a technology in 3DCG which automatically extract skeletons (i.e. bones, joints and their hierarchical structures) from 3D models. Such skeletons are important shape and pose descriptors for object representation, object recognition etc. Some existing skeletonization methods have difficulties in correctly extracting the position of joints. Some other methods are able to extract joints correctly to some extent, but controlling the number of bones and joints in their structure is not allowed. Therefore applying motion data acquired from motion capture devices to 3D models still involves a lot of manual work. In this paper, we propose a novel animation skeletonization method suited for CG animation based on Gauss sphere representation. By applying vertex Gauss sphere representation first and then applying template matching approach regardless of the object's shape, the proposed method is able to extract the same numbers of joints or bones in the same structure as in given motion data, i.e. one can directly apply existing motion data without the need of manual adjustment. Experimental results showed that the proposed method achieves 90% accuracy of pose estimation and 73% accuracy of joint estimation.

Original languageEnglish
Title of host publicationProceedings - 2013 5th International Conference on Computational Intelligence, Modelling and Simulation, CIMSim 2013
PublisherIEEE Computer Society
Pages77-82
Number of pages6
ISBN (Print)9780769551555
DOIs
Publication statusPublished - 2013 Jan 1
Event2013 5th International Conference on Computational Intelligence, Modelling and Simulation, CIMSim 2013 - Seoul, Korea, Republic of
Duration: 2013 Sep 242013 Sep 26

Publication series

NameProceedings of International Conference on Computational Intelligence, Modelling and Simulation
ISSN (Print)2166-8523
ISSN (Electronic)2166-8531

Other

Other2013 5th International Conference on Computational Intelligence, Modelling and Simulation, CIMSim 2013
CountryKorea, Republic of
CitySeoul
Period13/9/2413/9/26

Keywords

  • Animation skeleton
  • Gauss Sphere
  • Skeletonization

ASJC Scopus subject areas

  • Applied Mathematics
  • Modelling and Simulation
  • Computational Theory and Mathematics

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