一种基于质点弹簧模型的牙龈软组织形变仿真算法

doi:10.12052/gdutxb.190142

Abstract

Abstract: In the virtual surgery system, soft tissue deformation simulation will directly affect the reality of the simulation. In this research, a physical model of gingival tissue involved in oral surgery is established by means of mass-spring model. A midpoint-averaging algorithm is proposed for the simulation of gingival deformation in virtual surgery, which combines the advantages of the midpoint method and the average method, and uses the midpoint method to solve the speed and the average method to solve the displacement. It can effectively reduce the error and reduce the impact of step size. Compared with a variety of Explicit Euler algorithms, it is further verified that the midpoint-averaging algorithm has a higher solution precision and is less affected by the step size.

Key words: virtual surgery, gingival tissue, mass-spring model, deformation simulation, midpoint-averaging algorithm

CLC Number:

TP391.9

Li Jin-fang, Wei Guang-yang, He Han-wu, Cai Jia-hong, Chen Ji-rong. An Algorithm for Simulation of Gingival Tissue Deformation Based on Mass-Spring Model[J].Journal of Guangdong University of Technology, 2020, 37(03): 49-54.

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