熊岳山, 罗 军, 谭 珂, 王彦臻, 郭光友. 一种新的基于体元剖分的软组织切割算法[J]. 计算机研究与发展, 2005, 42(12): 2132-2136.
 引用本文: 熊岳山, 罗 军, 谭 珂, 王彦臻, 郭光友. 一种新的基于体元剖分的软组织切割算法[J]. 计算机研究与发展, 2005, 42(12): 2132-2136.
Xiong Yueshan, Luo Jun, Tan Ke, Wang Yanzhen, Guo Guangyou. A New Soft-Tissue Cutting Algorithm Based on Element Subdivision[J]. Journal of Computer Research and Development, 2005, 42(12): 2132-2136.
 Citation: Xiong Yueshan, Luo Jun, Tan Ke, Wang Yanzhen, Guo Guangyou. A New Soft-Tissue Cutting Algorithm Based on Element Subdivision[J]. Journal of Computer Research and Development, 2005, 42(12): 2132-2136.

## A New Soft-Tissue Cutting Algorithm Based on Element Subdivision

• 摘要: 切割是虚拟手术系统中需要表现的真实动作之一,真实感和实时性是衡量切割效果的关键.因此有必要研究一种新的基于体元剖分的软组织切割算法.该算法不同于以往的体元剖分算法，它将整个剖分过程分两步来完成：首先通过退化处理过程将不完全切割的四面体单元分解成多个完全切割的四面体单元；然后将切割情况进行分类，根据不同的切割情况分别进行相应的基元分解.实验表明，研究的新算法用于四面体单元的有限元模型，具有良好的切割处理效果.

Abstract: Cutting is one of simulations to the real actions in virtual surgery system, reality and real-time performances are the key factors for modeling cutting. Therefore, it is necessary to study new soft-tissue cutting algorithm，which belongs to element subdivision algorithm. The algorithm is different from other element subdivision algorithms. It divides the whole subdivision process into two smaller processes: firstly the incomplete-cutting element is decomposed into complete-cutting element, then the basis element decomposition is performed according to different cutting cases. Experiment results show that using this new algorithm for tetrahedron, finite element model can provide well visual result.

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