1999 Fiscal Year Final Research Report Summary
A STUDY ON VIRTUALIZED ENDOSCOPE AND SURGERY SIMULATION
| Project/Area Number |
09558033
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Intelligent informatics
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| Research Institution | Nagoya University |
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Principal Investigator |
SAITO Toyofumi Nagoya University, Research Center for Advanced Waste and Emission Management, Associate Professor, 難処理人工物研究センター, 助教授 (40235057)
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| Co-Investigator(Kenkyū-buntansha) |
MORI Kansaku Nagoya University, School of Engineering, Research Associate, 工学研究科, 助手 (10293664)
SUSENAGA Yasuhito Nagoya University, School of Engineering, Professor, 工学研究科, 教授 (60293643)
TORIWAKI Jun-ichiro Nagoya University, School of Engineering, Professor, 工学研究科, 教授 (30023138)
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| Project Period (FY) |
1997 – 1999
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| Keywords | Image processing / Surgery simulation / Endoscope / Computer graphics / Virtual reality / Elastic model / Navigation diagnosis / Medical image |
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| Research Abstract |
Based on progress of computational power and 3D medical imaging technology, a surgical simulation system using virtual reality techniques is becoming to be practical. In this study we tried to the following subject.
(1) Improving user interface of surgery simulation system
We are developing a surgery simulation system. We suggest an idea to cover the weak point of "beam-cursor method", evaluate their operations, and find our idea effective. Next, we enable more complex simulations by adopting hierarchical grouping function in our system.
(2) an elastic organ model for surgical simulation
We constructed an elastic model of organ by employing mass and spring. Deformation of organ is performed by calculating movements of each mass point caused by force of springs. We introduce a new calculation method which determine movement of each mass point by using only the distance between each mass point.
(3) generating a virtually stretched image of the stomach
We have developed a method for generating virtually a stretched image of the stomach. A three dimensional stretched abdominal CT image is generated from an original CT image by using the elastic model of stomach and a non-liner transformation.
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