基于球面增长的粒子系统左心室容积建模  

Left Ventricular Volume Modeling Based on The Particle System of the Spherical Growth

作　　者：李显良[1] 黄芳[1] 肖鹏飞[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《计算机工程与科学》2009年第2期27-30,共4页Computer Engineering & Science

基　　金：湖南省自然科学基金资助项目(05JJ40130);湖南省科技计划资助项目(2007FJ3069)

摘　　要：针对左心室三维容积建模与估算问题,本文提出了一种基于球面增长的粒子系统左心室容积建模方法。通过对粒子系统动力学平衡原理的研究,结合球面增长原理以及粒子系统方法对形变物体建模的特点,设计和实现了一个适应于不规则物体三维建模的球面增长粒子系统初始化算法,重建左心室三维模型,为左心室动态容积估算奠定了基础。实验结果表明,该方法建模精确且效率高。For the left ventricular volume 3D modeling and volume estimation, this paper proposes a new method of left ventricular volume modeling based on the particle system of spherical growth. Through studying the dynamics balancing principle of the particle system, and the theory of spherical growth, and considering the characteristics of the particle system applyed in the 3D modeling for the deformable objects, an algorithm for initializing the particle system of the spherical growth is designed and realized for the irregular deformable object 3D modeling. The proposed method is suitable for to the left ventrieular 3D modeling, and it is the foundation of dynamic volume estimation of the left ventrieular. The results of an experiment show an excellent precision and efficiency of this method.

关 键 词：三维建模 粒子系统 左心室容积 球面增长 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]