Virtual brain surgery simulation system based on haptic interaction  

作　　者：张小瑞 Zhu Jiandong Sun Wei Norman I.Badler Song Aiguo Niu Jianwei Liu Jia 

机构地区：[1]School of Computer and Software,Nanjing University of Information Science & Technology [2]Jiangsu Engineering Center of Network Monitoring,Nanjing University of Information Science and Technology [3]School of Information and Control,Nanjing University of Information Science & Technology [4]School of Engineering and Applied Science,University of Pennsylvania [5]School of Instrument Science and Engineering,Southeast University [6]State key Laboratory of Virtual Reality Technology and Systems,Beihang University

出　　处：《High Technology Letters》2015年第2期185-191,共7页高技术通讯（英文版）

基　　金：Supported by the National High Technology Research and Development Programme of China(No.2013AA010803,2009AA01Z311,2009AA01Z314);the National Natural Science Foundation of China(No.61304205,61203316,61272379,61103086,41301037);the Natural Science Foundation of Jiangsu Province(BK20141002);the Open Funding Project of State Key Laboratory of Virtual Reality Technology and Systems,Beihang University,Jiangsu Ordinary University Science Research Project(No.13KJB120007);Innovation and Entrepreneurship Training Project of College Students(No.201410300153,201410300165);the Excellent Undergraduate Paper(design)Supporting Project of NUIST

摘　　要：To improve the accuracy and interactivity of soft tissue delormatlon simulation, a new plate spring model based on physics is proposed. The model is parameterized and thus can be adapted to simulate different organs. Different soft tissues are modeled by changing the width, number of pieces, thickness, and length of a single plate spring. In this paper, the structural design, calcula- tion of soft tissue deformation and real-time feedback operations of our system are also introduced. To evaluate the feasibility of the system and validate the model, an experimental system of haptic in- teraction, in which users can use virtual hands to pull virtual brain tissues, is built using PHANTOM OMNI devices. Experimental results show that the proposed system is stable, accurate and promising for modeling instantaneous soft tissue deformation.To improve the accuracy and interactivity of soft tissue deformation simulation,a new plate spring model based on physics is proposed.The model is parameterized and thus can be adapted to simulate different organs.Different soft tissues are modeled by changing the width,number of pieces,thickness,and length of a single plate spring.In this paper,the structural design,calculation of soft tissue deformation and real-time feedback operations of our system are also introduced.To evaluate the feasibility of the system and validate the model,an experimental system of haptic interaction,in which users can use virtual hands to pull virtual brain tissues,is built using PHANTOM OMNI devices.Experimental results show that the proposed system is stable,accurate and promising for modeling instantaneous soft tissue deformation.

关 键 词：haptic feedback human-computer interaction surgery simulation soft tissue deformation 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] Q593.2[自动化与计算机技术—计算机科学与技术]