A mass-spring model for surface mesh deformation based on shape matching

Authors:
Yanzhen Wang;Yueshan Xiong;Kai Xu;Ke Tan;Guangyou Guo
Affiliations:
National University of Defense Technology, Changsha, China;National University of Defense Technology, Changsha, China;National University of Defense Technology, Changsha, China;Center for Technique Education, PLA General Hospital, Beijing, China;Center for Technique Education, PLA General Hospital, Beijing, China
Venue:
Proceedings of the 4th international conference on Computer graphics and interactive techniques in Australasia and Southeast Asia
Year:
2006

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Abstract

In this paper, we propose a mass-spring model based on shape matching for real-time deformable modeling in virtual reality systems. By defining a rigid core for surface mesh model and adding a new generalized spring for each mass, our surface mesh model can preserve its original geometric features such as volume and shape. Then, we use shape matching approaches to update the rigid core of the model dynamically so as to simulate global deformations. At last, we adopt an inverse dynamics technique to deal with the resulting deformations. We correct the non-real "super-elastic" effect for linear elastic models so that the visual reality is improved.