摘要
如何设计出交互性好、逼真、高实时性的虚拟手术仿真系统是当前虚拟手术领域研究的热点,以一种新颖的基于物理意义的层状菱形链连接模型为基础,利用SenAble Technologies公司生产的PHANTOM OMNI交互设备,搭建了支撑双通道力/触觉交互的虚拟肺手术仿真系统。通过虚拟双手对正常肺组织与肺硬块在多点交互下的按压、拉拽等变形仿真,分析了该系统的应用情况和性能指标。实验结果表明,将该模型应用于虚拟手术研究中,系统能动态实时逼真地模拟软组织的变形过程,反馈的力/触觉信息真实稳定,为虚拟手术仿真的实用化探索出一条可行的道路。
How to design a virtual surgery simulation system that has good interaction, fidelity and high real-time performance is becoming current research focus in virtual surgery fields. This paper provides a novel virtual lung sur- gery simulation system that supports dual-channel haptic interaction, which is based on a layered diamond-chain model with physical meaning and is built using PHANTOM OMNI interactive devices produced by SenAble Technolo- gies Inc. Through deformation simulations with multipoint interactions both on healthy lung tissue and lung lumps, such as stretching, compressing deformations and etc. with virtual hands, the application and performance of the system are analyzed. Experiment results show that applying this model to virtual surgery, the system can realize dy- namic realistic and real-time simulation of soft tissue deformation process, and the feed back haptic information is re- al and stable, which explores a feasible direction for the oractical ant3[icalion af virtllnl ;~,,l^t;~
出处
《仪器仪表学报》
EI
CAS
CSCD
北大核心
2012年第2期421-428,共8页
Chinese Journal of Scientific Instrument
基金
国家863计划(2009AA01Z314
2009AA01Z311)
国家自然科学基金(61075068
609050456
0775057
60675047)
江苏省高校自然科学研究基金(11KJB460006)
南京信息工程大学校科研基金(20100383
20100384)资助项目
关键词
人机交互
虚拟现实
变形仿真
力/触觉模型
human-computer interaction
virtual reality
deformation simulation
haptie model
