A Real-time Deformation Modeling Scheme of Soft Tissue for Virtual Surgical
Surgical simulation is a promising technology for training medical students and planning procedures. Although an amount of research efforts have been dedicated to simulating the deformation of soft tissues, modeling of soft tissue deformation is still a challenging problem. From the viewpoint of real-time simulation, this paper presents a novel deformation modeling scheme based on mass-spring model for virtual soft tissue. This method limits the computation within a region of influence, of which location is changing with the location of the virtual touch probe on the surface of soft tissue. This scheme improves the computational efficiency and saves a great lot of memory. In addition, the fourth-order Runge-Kutta method is chosen as the numerical integrator of the model. The modeling approach has been integrated into a virtual palpating surgery training system and the users could control the virtual tools and manipulate the virtual organs with the haptic devices. Results show the system has achieve the level of real-time interaction.
Virtual surgery Mass-spring model Real-time modeling Haptic feedback Deformationg
Ling Zhu Xiufen Ye Xi Ji’er Yizhou Gu Shuxiang Guo
College of Automation Harbin Engineering University Harbin,Heilongjiang Province,China
国际会议
2010 IEEE信息与自动化国际会议(ICIA 2010)
哈尔滨
英文
1-5
2010-06-20（万方平台首次上网日期，不代表论文的发表时间）