講演名 2006/1/3
VIRTUAL PALPATION SYSTEM USING SPRING-MASS NETWORK MODEL(International Workshop on Advanced Image Technology 2006)
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抄録(和)
抄録(英) 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).
キーワード(和)
キーワード(英)
資料番号 IE2005-232
発行日

研究会情報
研究会 IE
開催期間 2006/1/3(から1日開催)
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開催地(英)
テーマ(和)
テーマ(英)
委員長氏名(和)
委員長氏名(英)
副委員長氏名(和)
副委員長氏名(英)
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講演論文情報詳細
申込み研究会 Image Engineering (IE)
本文の言語 ENG
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サブタイトル(和)
タイトル(英) VIRTUAL PALPATION SYSTEM USING SPRING-MASS NETWORK MODEL(International Workshop on Advanced Image Technology 2006)
サブタイトル(和)
キーワード(1)(和/英)
第 1 著者 氏名(和/英) / Toru Miyazaki
第 1 著者 所属(和/英)
Dept. of Information and Computer Sciences Toyohashi University of Technology
発表年月日 2006/1/3
資料番号 IE2005-232
巻番号(vol) vol.105
号番号(no) 501
ページ範囲 pp.-
ページ数 6
発行日