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首页> 外文期刊>Computer Methods and Programs in Biomedicine: An International Journal Devoted to the Development, Implementation and Exchange of Computing Methodology and Software Systems in Biomedical Research and Medical Practice >A new approach for the real-time simulation of tissue deformations in surgery simulation.
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A new approach for the real-time simulation of tissue deformations in surgery simulation.

机译：一种在手术模拟中实时模拟组织变形​​的新方法。

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摘要

Simulation of the behaviour of elastic objects in real time is one of the present objectives of computer graphics. One of its fields of application lies in virtual reality, mainly in surgery simulation systems. Models used for the construction of objects with deformable behaviour in computer graphics are known as deformable models. These have two conflicting characteristics: interactivity and movement realism. The deformable models developed up till now have promoted one characteristic to the detriment of the other. In this paper, a new approach is proposed based on boundary element methods (BEM). This is characterised by a positive equilibrium between speed and realism and great robustness. These properties along with the experimental results described in this paper permit one to assert that establishing deformable models with BEM is a reliable method to model objects in virtual reality environments for surgery simulation. In addition to that, the required elasticity parameters could be obtained experimentally through the use of a pig's liver.
机译：实时模拟弹性对象的行为是计算机图形学的当前目标之一。它的应用领域之一是虚拟现实，主要是在手术模拟系统中。用于构造计算机图形中具有可变形行为的对象的模型称为可变形模型。它们具有两个相互矛盾的特征：交互性和运动真实感。迄今为止发展起来的可变形模型已经将一个特征提升为另一个特征。本文提出了一种基于边界元方法（BEM）的新方法。其特点是速度与真实性之间的正平衡与强大的鲁棒性。这些特性以及本文描述的实验结果使我们可以断言，使用BEM建立可变形模型是在虚拟现实环境中对对象进行手术仿真的可靠方法。除此之外，可以通过使用猪的肝脏实验获得所需的弹性参数。

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