文章摘要
于歌,王党校,张玉茹.面向牙齿钻削手术仿真的体建模方法[J].高技术通讯(中文),2010,20(3):314~319
面向牙齿钻削手术仿真的体建模方法
Voxel based modeling for haptic enabled dental drilling simulation
  
DOI:
中文关键词: 虚拟牙科手术, 仿真, 钻削, 体素, 重构
英文关键词: virtual dental surgery, simulation, drilling, voxel, reconstruction
基金项目:863计划(2007AA01Z310)资助项目
作者单位
于歌 北京航空航天大学虚拟现实技术与系统国家重点实验室 
王党校 北京航空航天大学虚拟现实技术与系统国家重点实验室 
张玉茹 北京航空航天大学虚拟现实技术与系统国家重点实验室 
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中文摘要:
      通过分析虚拟牙齿钻削手术对模型的要求,建立了基于线性表的均匀立方体体素网格模型,设计了材料去除与模型重构算法,实时模拟钻削中模型的拓扑结构变化,并采用点绘制方法进行图形显示。采用0.1mm的剖分粒度进行实验,证明牙齿体素模型的实时性可以满足1kHz的力觉反馈和30Hz的图形显示要求,设计的模型重构算法可以较精确地实现多种不同尺寸工具的钻削仿真。
英文摘要:
      This paper establishes a linear list based uniform cube voxel model through the analysis of the requirements of virtual teeth drilling operation modeling. A material removal and reconstruction algorithm is designed for real time simulation of topology update caused by drilling operation and point based rendering is used for image processing. The experimental results show that the model decomposed by 0.1mm could well satisfy the demand of the force feedback frequency of 1kHz and the model reconstruction frequency of 30Hz. At the same time, the model reconstruction algorithm can precisely simulate various drilling tools in different sizes.
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