VIRTUAL PALPATION SYSTEM USING SPRING-MASS NETWORK MODEL(International Workshop on Advanced Image Technology 2006)

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概要

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• Virtual surgery is found to be an important application of virtual reality technologies in a medical field, which can give trainees a great deal of experiences without using any living patients. In this paper, a virtual palpation system with a force feedback device is presented as a new application in medicine. We introduce a spring-mass network for representing a deformable soft object : soft tissues with smaller spring constants while harder objects such as tumors with larger spring constants. Because of the slow convergence of spring-mass dynamics, a spring-mass network model is unsuited to realtime interactive operation. We therefore introduce a preprocessing method for real-time operation. A 3D table listing node locations and depth of stick motion is pre-computed. This table is used for real-time operation for computing deformed shapes and reflection force. A real deformable object was made of gelatine and a lump of plastic eraser. A corresponding virtual system was constructed. The usability of this sytem was successfully evaluated with experimenting detection of a tumor through the reactive force with a force-feedback device (PHANToM).

• 社団法人電子情報通信学会の論文
• 2006-01-03

著者

• Miyazaki Toru

  Dept. Of Information And Computer Sciences Toyohashi University Of Technology

• Kaneko Toyohisa

  Dept. of Information and Computer Sciences Toyohashi University of Technology

• Kuriyama Shigeru

  Dept. of Information and Computer Sciences Toyohashi University of Technology

関連論文

• Theoretical Analysis of Phase Decomposition in Real Alloy Systems based on the Non-Linear Diffusion Equation
• VIRTUAL PALPATION SYSTEM USING SPRING-MASS NETWORK MODEL(International Workshop on Advanced Image Technology 2006)

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