| Project/Area Number |
06557103
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
補綴理工系歯学
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
UCHIMIYA Yoichi Hokkaido Univ., School of Dent.Pro., 歯学部, 教授 (40005020)
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| Co-Investigator(Kenkyū-buntansha) |
HAYANO Seiji CMET Co.Researcher, 企画開発部, 部長代理
UEDA Yasuo Hokkaido Univ., School of Dent.Asst., 歯学部, 助手 (30241342)
HIKITA Kazuhiro Hokkaido Univ., School of Dent.Asst., 歯学部, 助手 (20238281)
OHATA Noboru Hokkaido Univ., School of Dent.Asso.Pro., 歯学部, 助教授 (60002185)
大浦 武彦 北海道大学, 医学部, 教授 (70000982)
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| Project Period (FY) |
1994 – 1995
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| Project Status |
Completed (Fiscal Year 1995)
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| Budget Amount *help |
¥18,800,000 (Direct Cost: ¥18,800,000)
Fiscal Year 1995: ¥1,800,000 (Direct Cost: ¥1,800,000)
Fiscal Year 1994: ¥17,000,000 (Direct Cost: ¥17,000,000)
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| Keywords | CT / LESER LITHOGRAPHY / RAPID PROTOTYPING / HUMAN MODEL / Rapid prototvping |
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| Research Abstract |
The development of the living body substance model high speed framing device by the light molding methed that used CT film. It is that the purpose of this studies develops tha device which can make the living body model simply from CT film.
At first, we digitized CT film and converted it into numerical data, and we got possible to make the living body model when seemed not to be got CT data directly from CT device. Then we compared a model made from CT data with this model. As a result, there are some problems by setting of precision and threshold value of image, but this model is very useful for simulation of simple operation.
Next, we tried a method to copy 1 slice at a time furthermore.
So, (1) We developed original software for image processing, and extracted shape of internal organs in the living body from CT film automatically, and established technology to generate data for transcription.
(2) We changed image from CT film to monochrome, and copyed on film that ultraviolet rays transmit. So, we could make a model by exposured 1 slice at a time.
In particular, about film for exposure mask, we ware able to confirm that we could utilize extremely cheap materials. But, about a quantity of light and the control of resinous depth to stiffen to transmit film, still many problems.
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