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。
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。
First, three-dimensional models for neurosurgery virtual surgery system has been build: virtual head model, virtual operating room model and virtual hand model.
首先，建立了神经外科虚拟手术系统所需要的三维模型：虚拟颅脑模型、虚拟手术室模型、虚拟手模型。
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 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。
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。
The Minimal Invasive Surgery Training System, which combines virtual reality and medicine, can solve the problem.
结合虚拟现实和医学技术的微创外科手术培训系统可以有效地解决这一问题。
At last, ergonomical principles and LORD theories are applied into a virtual training system design for laparoscopic surgery which is composed of both software and hardware.
最后，结合腹腔镜外科手术虚拟培训系统的实例，将人机工程学原理与LORD原理运用于系统的软硬件设计，演示了本文研究的应用。
Virtual liver surgery simulation system consists of image pre-processing, image segmentation, volume estimation, the virtual cutting simulation and other functions.
肝脏虚拟手术仿真系统包括图像预处理、图像分割、体积估计，虚拟切割仿真等功能。
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。
The object of virtual endoscopy system research is to provide trusty means for medical diagnoses, and to spread the new application fields as assistant diagnoses, surgery planning and training.
虚拟内窥镜的研究旨在为医生提供诊断依据，还可应用于辅助诊断、手术规划、实现手术的精确定位和医务人员的培训等。
The object of virtual endoscopy system research is to provide trusty means for medical diagnoses, and to spread the new application fields as assistant diagnoses, surgery planning and training.
虚拟内窥镜的研究旨在为医生提供诊断依据，还可应用于辅助诊断、手术规划、实现手术的精确定位和医务人员的培训等。
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