| Presentation | 1994/5/27 Calibration of a Potentiometer-Based Three-Dimensional Digitizer Sadao Nakayama, Toyohiko Hayashi, Kenichi Itoh, Michio Miyakawa, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | 3-D digitizers using potentiometers have been used extensively as a handy position-measurement apparatus,due to its simple and light-weight structure.Its accuracy,however,is limited inevitably by the axis mobility of the sensor.This paper then presents a calibration technique for a digitizer possessing 4 sensors,which was developed to measure the position of several jaw points.To mitigate the errors caused by the axis mobility,the measurement field was divided into 4 distinct domains,bilateral tooth-regions and jaw-joint regions,each in which the mobility is relatively restricted.A total of 8 potentiometer parameters,prepared for each domain,were determined to minimize the measurement error of many spatially distributed reference-positions,in the sense of least- squares.Consequently,the accuracy can be improved to lie within 3 mm and 4 mm in the tooth and joint regions,respectively. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | three-dimensional digitizer / potentiometer / calibration / least-square estimation / accuracy verification / mandibular point |
| Paper # | MBE94-11 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1994/5/27(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) | Calibration of a Potentiometer-Based Three-Dimensional Digitizer |
| Sub Title (in English) | |
| Keyword(1) | three-dimensional digitizer |
| Keyword(2) | potentiometer |
| Keyword(3) | calibration |
| Keyword(4) | least-square estimation |
| Keyword(5) | accuracy verification |
| Keyword(6) | mandibular point |
| 1st Author's Name | Sadao Nakayama |
| 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 | Kenichi Itoh |
| 3rd Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University |
| 4th Author's Name | Michio Miyakawa |
| 4th Author's Affiliation | Department of Information Engineering,Faculty of Engineering, Niigata University |
| Date | 1994/5/27 |
| Paper # | MBE94-11 |
| Volume (vol) | vol.94 |
| Number (no) | 80 |
| Page | pp.pp.- |
| #Pages | 8 |
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