| Presentation | 1994/9/29 Measurement and control of cranial-positioning system using PSD cameras and a 5-degree-of-freedom robotized chair Yasuo Nakamura, Toyohiko Hayashi, Takashi Takeda, Kazumasa Katoh, Michio Miyakawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In measurements of mandibular movements employing a X-ray television,the cranial position must be normalized,relative to the measuring device,using a positioning jig.This normalization, however,is somewhat time-consuming and likely to restrict mandibular movements.To improve these,we have been developing a system automatically normalizing the cranial position.This system monitors the position and orientation of the cranium,using a PSD- camera photostereometry.If they are incorrect,the cranium is moved into the required position,using a 5-degree-of-freedom robotized chair.To accomplish this,the required position and orientation of the head-rest of the chair must be computed from data of the current cranial position.This computation requires the tripartite positional relations of the cranium,the stereometric system and the robotized chair.This paper theoretically demonstrates that these relations can be obtained through a relatively simple calibration,and also provides a solution to an inverse problem determining robot-control parameters from the head rest position required. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | normalaization of the cranial position / PSD cameras / 5-degree- of-freedom robotized chair / X-ray television / Calibration |
| Paper # | MBE94-65 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1994/9/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | ME and Bio Cybernetics (MBE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Measurement and control of cranial-positioning system using PSD cameras and a 5-degree-of-freedom robotized chair |
| Sub Title (in English) | |
| Keyword(1) | normalaization of the cranial position |
| Keyword(2) | PSD cameras |
| Keyword(3) | 5-degree- of-freedom robotized chair |
| Keyword(4) | X-ray television |
| Keyword(5) | Calibration |
| 1st Author's Name | Yasuo Nakamura |
| 1st Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University() |
| 2nd Author's Name | Toyohiko Hayashi |
| 2nd Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University |
| 3rd Author's Name | Takashi Takeda |
| 3rd Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University |
| 4th Author's Name | Kazumasa Katoh |
| 4th Author's Affiliation | First Department of Prosthetic Dentistry,School of Dentistry, Niigata University |
| 5th Author's Name | Michio Miyakawa |
| 5th Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University |
| Date | 1994/9/29 |
| Paper # | MBE94-65 |
| Volume (vol) | vol.94 |
| Number (no) | 261 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |