| Presentation | 2005/8/19 An evaluation of the three-dimensional electromagnetic articulographic system Tokihiko KABURAGI, Kohei WAKAMIYA, Takemi MOCHIDA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An investigation was performed to construct the three-dimensional electromagnetic articulograhy designed for observing dynamic behavior of articulators. Spatial patterns of magnetic fields produced from six transmitter coils are represented using splines so as to interpolate given samples of magnetic data. The position and orientation of the receiver coil are then determined so that the difference between measured and predicted strengths of the received signal is minimized. Experiments revealed that the position estimation error is about 0.23mm for a cubic test area of 6-cm side length. This error increased slightly (about 0.1mm) when the receiver coil was rotated from zero to 90 degrees, while the error in estimating the orientation was quite small (0.38 degrees). Also, the Marquardt method showed a good convergence for solving the nonlinear receiver-state problem. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Articulatory observation / Electromagnetic system / Three-dimensional measurement / Spline representation / Performance evaluation |
| Paper # | SP2005-55 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 2005/8/19(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 | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An evaluation of the three-dimensional electromagnetic articulographic system |
| Sub Title (in English) | |
| Keyword(1) | Articulatory observation |
| Keyword(2) | Electromagnetic system |
| Keyword(3) | Three-dimensional measurement |
| Keyword(4) | Spline representation |
| Keyword(5) | Performance evaluation |
| 1st Author's Name | Tokihiko KABURAGI |
| 1st Author's Affiliation | Kyushu University() |
| 2nd Author's Name | Kohei WAKAMIYA |
| 2nd Author's Affiliation | Kyushu University |
| 3rd Author's Name | Takemi MOCHIDA |
| 3rd Author's Affiliation | NTT Communication Science Laboratories |
| Date | 2005/8/19 |
| Paper # | SP2005-55 |
| Volume (vol) | vol.105 |
| Number (no) | 253 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |