| 基于薄膜比拟和克里金插值的软组织扭转模型 |
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| 引用本文： | 张小瑞,王澎湃,孙伟,朱利丰,刘佳.基于薄膜比拟和克里金插值的软组织扭转模型[J].仪器仪表学报,2017,38(6):1398-1404. |
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| 作者姓名： | 张小瑞 王澎湃 孙伟 朱利丰 刘佳 |
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| 作者单位： | 1.南京信息工程大学江苏省网络监控工程中心南京210044；2.南京信息工程大学江苏省大气环境与装备技术协同创新中心南京210044,南京信息工程大学江苏省网络监控工程中心南京210044,南京信息工程大学江苏省大气环境与装备技术协同创新中心南京210044,东南大学仪器科学与工程学院南京210096,南京信息工程大学江苏省大气环境与装备技术协同创新中心南京210044 |
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| 基金项目： | 国家“八六三”高技术研究发展计划(2013AA010803)、国家自然科学基金(61502240，61502096，61304205，61203316，61663027)、江苏省自然科学基金(BK20141002，BK20150634)项目资助 |
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| 摘 要： | 建模速度快和高精度的软组织模型能提高虚拟手术仿真的真实感,提出一种基于薄膜比拟和克里金插值的虚拟软组织扭转模型。该模型采用薄膜比拟法求出棱线上任意关键样本点的变形量,利用克里金插值计算任意棱线内任意一点的变形量。在PHANTOM OMNI力触觉交互设备上,搭建实验仿真系统,实现了虚拟小肠的扭转变形仿真。实验结果表明,该模型运行速度快、计算精度高、形变逼真、力触觉反馈准确可靠。
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| 关 键 词： | 虚拟手术 软组织扭转 薄膜比拟 克里金插值 |
Soft tissue torsion model based on membrane analogy and Kriging interpolation |
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| Zhang Xiaorui,Wang Pengpai,Sun Wei,Zhu Lifeng and Liu Jia.Soft tissue torsion model based on membrane analogy and Kriging interpolation[J].Chinese Journal of Scientific Instrument,2017,38(6):1398-1404. |
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| Authors: | Zhang Xiaorui Wang Pengpai Sun Wei Zhu Lifeng and Liu Jia |
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| Affiliation: | 1. Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science &Technology, Nanjing 210044,China;
2. Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology,
Nanjing 210044, China,Jiangsu Engineering Center of Network Monitoring, Nanjing University of Information Science &Technology, Nanjing 210044,China,Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing 210044, China,School of Instrument Science and Engineering, Southeast University, Nanjing 210096, China and Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | The soft tissue model with high modeling speed and accuracy can improve the realism in a virtual surgery simulation system. In this paper, we propose a new virtual soft tissue torsion model based on membrane analogy and Kriging interpolation. The model adopts the membrane analogy method to compute the deformation of all the key sample points on the ridges, and uses the Kriging interpolation method to compute the deformation of any points among the ridges. An experiment simulation system was built on the haptic interaction device of PHANTOM OMNI, and the deformation simulation of virtual small intestine under the action of the applied torsion was realized. The experiment results show that the proposed model has such advantages as fast operation speed, high calculation accuracy, realistic deformation and accurate, reliable haptic feedback. |
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| Keywords: | virtual surgery soft tissue torsion membrane analogy Kriging interpolation |
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