This algorithm considers the special conditions within virtual surgery, and has a good balance between real-time interactivity and accuracy of the deformable model.
该算法考虑到虚拟手术中存在的特殊情况，在形变模型的实时交互性与精确性之间取得了良好的平衡。
Firstly, the virtual surgery system is established.
首先，建立了虚拟手术系统。
This dissertation has studied several key technologies of neurosurgery virtual surgery system.
本文针对神经外科虚拟手术系统的关键技术进行了研究。
The virtual surgery simulation system must fulfill the demands of the reality and the real-time.
虚拟手术系统应该同时满足真实性和实时性的要求。
In order to solve collision detection problem in virtual surgery, a rapid collision detection method based on bounding volume hierarchy is presented.
为了解决虚拟手术的快速碰撞检测问题，提出了一种新的基于层次包围盒的快速碰撞检测方法。
The experiment results shows that it can solve the problems and fulfil the requirement of accurate and real-time collision detection in virtual surgery.
实验结果证明算法能很好地解决虚拟手术中的碰撞检测问题，且满足虚拟手术中的实时性和精确性要求。
This dissertation has mostly studied the technology of three-dimensional modeling and human-computer interaction in neurosurgery virtual surgery system.
本文主要研究了神经外科虚拟手术系统中的三维建模及人机交互技术。
With the background of virtual surgery simulations, the collision detection and self-collision detection problems are studied comprehensively in this thesis.
本文以虚拟手术为应用背景，对虚拟手术中的碰撞检测和软体自碰撞检测算法进行了深入研究。
Based on laryngeal surgery with laryngoscope, a virtual surgery system is established and it can realize the simulation of vocal cord tumor cutting with force feedback.
本文针对支撑喉镜下喉部手术的虚拟系统进行研究，建立了虚拟手术系统，实现了喉部声带肿物切除的手术仿真。
The object of virtual surgery simulation system research and development is to provide a reusable environment for surgery training, planning, rehearsal and protection in operation.
虚拟手术系统的研究和开发为医生提供了可反复使用的训练和模拟工具，可以应用于手术规划、手术演练和手术中的保护等。
Besides, by integrating with surgical robots, virtual surgery simulation could also afford accurate positioning information to master-and-slave motion control of the robot systems.
通过与手术机器人控制系统的集成，虚拟手术仿真还可以为机器人系统的主从运动控制提供精确的定位信息。
The inside mesh units have consistent size and ideal quality for the Finite Element Method. This method can establish good foundation for the further steps in virtual surgery system.
用这种方法生成的网格内部单元体的大小一致而且质量以达到了有限元方法所要求的理想网格标准，从而为虚拟手术后期有限元插值计算打下了良好的基础。
Virtual surgery is a comprehensive subject; it involves medical science, computer graphics, biomechanics, mechanical dynamics, material science and so on.
虚拟手术是一门综合性的学科，涉及到医学，计算机图形学，生物力学，机械动力学，材料科学等诸多领域。
Virtual surgery is a comprehensive subject; it involves medical science, computer graphics, biomechanics, mechanical dynamics, material science and so on.
虚拟手术是一门综合性的学科，涉及到医学，计算机图形学，生物力学，机械动力学，材料科学等诸多领域。
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