基于快速质点-弹簧的软组织穿刺实时仿真方法的研究

The Simulation of Real-time Soft Tissue Penetration Based on Fast Mass-spring System

软组织穿刺实时仿真一直是计算机图形学研究的重点,本文提出一种基于快速质点弹簧方法的软组织穿刺实时仿真方法。通过质点弹簧系统建立软组织物理模型,通过分析动力学模型快速求解软组织穿刺形变的数值解。在针体和软组织碰撞的碰撞过程使用包围盒碰撞算法,并且在软组织形变过程中加入阻尼和软组织褶皱算法以提高真实感。仿真结果保留了较好的细节效果,实时性可以接受,验证了该方法的有效性。

Soft tissue penetration is very important in computer graphics . We describe a scheme for Real-time soft tissue penetration that based on fast mass-spring systems.Soft tissue physical model is established by mass-spring systems. we provide fast numerical solution for soft tissue penetration and use bounding boxes in collision detec-tion.We introduce damping and soft tissue bending to enhance the sense of realism .Simulation results retain the effect of good details,real-time acceptable and validated the effectiveness of this method.