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Journal of Information Science and Engineering, Vol. 26 No. 2, pp. 379-391 (March 2010)

Example-based Deformation Transfer for 3D Polygon Models*

HUNG-KUO CHU AND CHAO-HUNG LIN+
Department of Computer Science and Information Engineering
+Department of Geomatics
National Cheng Kung University
Tainan, 701 Taiwan
E-mail: {hkchu@csie; linhung@mail}.ncku.edu.tw

Deformation transfer is to transfer the deformation of a source deforming model to a target model. Not only the pose but the detailed deformations of a source model are transferred to a target model, causing the characteristic deformations of the target model are mixed with those of the source model. This leads to unnatural results. In this paper, we present a novel example-based deformation transfer approach to solve this problem. With the aid of a few target examples, the characteristic deformations of transferred target models are recovered. We evaluate our approach with several full-body articulated models. The experimental results show that our approach can generate more natural and convincing deformation transfer results than other approaches.

Keywords: deformation gradient, deformation transfer, animation, retargeting, model editing

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Received June 20, 2008; revised September 18, 2008; accepted November 20, 2008.
Communicated by Suh-Yin Lee.
* This work was supported by the National Science Council of Taiwan, R.O.C. under contracts No. NSC 96- 2221-E-006-312-MY2, NSC 96-2628-E-006-200-MY3, NSC 98-2221-E-006-179, NSC 98-2221-E-006-179, and also supported by the Landmark Project of National Cheng Kung University, Taiwan under contract No. C0038. The authors also gratefully acknowledge the helpful comments and suggestions of Prof. Tong-Yee Lee, Hsin-Cheng Chiang and the reviewers.