基于复合弹簧振子模型的实时心跳模拟  

Real-Time Heartbeat Modeling Based on a Hybrid Mass-Spring Model

作　　者：王彦臻[1] 熊岳山[1] 谭珂[2] 郭光友[2] 

机构地区：[1]国防科技大学计算机学院,湖南长沙410073 [2]中国人民解放军总医院技术教育中心,北京100853

出　　处：《计算机工程与科学》2008年第1期132-134,共3页Computer Engineering & Science

基　　金：国家自然科学基金资助项目(60371036)

摘　　要：本文针对心脏介入仿真系统,提出了一种实时心跳模拟方法。该方法首先根据心脏的解剖结构建立了心脏的复合弹簧振子模型,然后根据心脏跳动的基本规律,使用逆向动力学技术将心房、心室的收缩、扩张与整个模型结合起来,从而得到心脏外表面的跳动效果。在此基础上,本文还实现了冠状动脉的运动模拟。实验结果表明,本方法简单、高效,能够在视觉上提供实时逼真的心脏跳动效果。In this paper,we propose a real-time approach to heartbeat modeling. Firstly, the deformable model of the human heart is established using a hybrid mass-spring model, according to the anatomical structure of the human heart. Then we model the contraction and expansion of atriums and ventricles based on the basic rule of heartbeat motion. Finally,we integrate the motion of atriums and ventricles into the whole model to get the beating effect of the outer surface of the heart model. Furthermore,we implement the motion of coronary artery. Experimental results show that our modeling approach is simple and effective,and it can provide a visually plausible heartbeat effect in a real-time way.

关 键 词：手术仿真 心脏介入 心跳模拟 弹簧振子模型 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]