可变形物体的建模与仿真是当今计算机图形学领域的难点和热点之一。对于手术模拟等需要精确计算的场合,最佳的建模工具仍然是有限元模型。惟一限制有限元模型广泛应用的瓶颈,在于有限元的大计算量。为了克服这个困难,目前出现了很多新颖的技术方法。对这些有限元新技术做一个比较全面的综述,对其进行分类和概括,并总结这些最新成果的解决思路以及具体的解决方法,对有意以有限元为工具开发仿真系统的研究者们具有很大的启发和参考价值。Nowadays the simulation of deformable objects is a hotspot in the field of computer graphics. In the simulation of operation, for the request of precision, Finite Elements Models (FEM) is the best model. The disadvantage of FEM is the mass quantity of the calculation. To solve this, many new techniques has come out recently. To summarize these new FEM techniques, including their thoughts and the solutions, it will be helpful to the researchers who want to use FEM to do some simulation work.国家自然基金(60371012);; 卫生部联合基金(WKJ2005-2-001);; 福建省科技重点项目(2005Y0018)资助;; 厦门市科技计划项目(3502Z20051015)
