2016 Fiscal Year Final Research Report
The development of an optical surface scanning and monitoring system using a high-speed pattern projector and a compact camera for patient setup
| Project/Area Number |
26670563
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Radiation science
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| Research Institution | Hamamatsu University School of Medicine (2015-2016)
Kyushu University (2014) |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 放射線治療 / 光3D形状計測 / CCDカメラ |
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| Outline of Final Research Achievements |
The purpose of this study was to develop an optical surface scanning and monitoring system for patient setup. We have developed a 3D shape measurement system using a high-speed pattern projector and a compact camera. The pattern projector composed of a laser diode and a single MEMS (micro electro mechanical system) mirror. The spatiotemporal conversion technique was introduced to our projection system. The point beam from the laser diode was transformed into a line beam after passing through a cylindrical lens. When the output of laser beam was sinusoidally controlled by the MEMS mirror and scanned the surface of the phantom, fringe patterns were formed on the phantom. The patterns were captured through a camera, and then 3D positions of the surface were calculated. The accuracy to detect the displacement of the phantom was less than 1 mm. This 3D shape measurement system has a potential to conduct 3D positon registration for patient setup.
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| Free Research Field |
放射線腫瘍学
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