基于子空间凝聚的软组织形变仿真方法研究

Research of Soft Tissue Deformation Simulation Based on the Subspace Condensed Research

随着虚拟手术中软组织形变仿真的不断普及,越来越多的形变方法被提出来。在过去的仿真方法中,仿真的真实性和实时性往往不能并存。虚拟手术中,在保证形变仿真效果真实性的同时要保证仿真的效率,由此提出了一种基于子空间凝聚的方法对四面体网格的软组织形变进行仿真,碰撞检测采用基于三角剖分的碰撞检测算法。实验表明,子空间凝聚的形变方法在形变时保证较好真实性的同时也具有较高的仿真效率。

With the popularization of soft tissue deformation and simulation in virtual surgery, more and more deformation methods were put forward. In the past simulational methods, the authenticity and real - time often cannot coexist. In virtual surgery, we should not only ensure the authenticity of deformation simulation but also assure the efficiency of the simulation. According to the above mentioned, we come up with a method which is based on the subspace condensed, the method could make the simulation to the soft tissue simulation. In the collision detection aspect, we use the collision detection algorithm which is based on the Delaunay triangulation. The experiment showed that the method of the subspace condensed not only owned the good reality but also owned the higher simulation efficiency.