Cameron B M, Robb R A
Mayo Foundation, Rochester, MN 55905, USA.
Stud Health Technol Inform. 2000;70:53-8.
Traditionally, finite element analysis or mass-spring systems are used to calculate deformations of geometric surfaces. Patient-specific geometric models can be comprised of tens of thousands, even hundreds of thousands of polygons, making finite element analysis and mass-spring systems computationally demanding. Simulations using deformable patient specific models at real time rates are prohibitive under such a computational burden. This paper presents a method for simulating deformable surfaces by deforming a skeletal representation of the surface, rather than the surface itself, yielding an efficient method for interactive simulation with models.
传统上，有限元分析或质量弹簧系统用于计算几何表面的变形。针对患者的特定几何模型可能由数万甚至数十万的多边形组成，这使得有限元分析和质量弹簧系统对计算要求很高。在如此大的计算负担下，以实时速率使用可变形的患者特定模型进行模拟是难以实现的。本文提出了一种通过对表面的骨骼表示而非表面本身进行变形来模拟可变形表面的方法，从而产生了一种与模型进行交互式模拟的有效方法。
