| Presentation | 1996/12/14 Estimation of Sagittal Movement of the Temporomandibular Joint from X-ray Television Data Employing Phase of Gabor Wavelet Transform Minoru KENMOCHI, Toyohiko HAYASHI, Kazumasa KATOH, Michio MIYAKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Motion estimation of the temporomandibular joint (TMJ) from X-ray television data consists of two different procedures as follows: 1)computation of the velocity field (optical flow) from two successive images; and 2) estimation of the velocity and the angular velocity from the flow data obtained. TMJ movement in a given X-ray image squence can be observed merely as movement of a blurred contour of the mandibular head, overlapped by images of cranial bones. Such image sequence cannot be dealt with accurately by conventional optical-flow estimation methods. To improve this estimation, we modified an advanced method using Gabor wavelet transfomation into one applicable to X-ray images of the TMJ, by incorporating the optimization of the scale parameter of the transformation at all image points. Through experiments employing an actual X-ray-TV image sequence of the TMJ, our methodology was verified to be effective to improve the estimation accuracy of the optical flow, consquently the improvement of the motion estimation being achieved. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | temporomandibular joint / movement estimation using time-varying image processing / X-ray television / optical flow / Gabor wavelet transform |
| Paper # | MBE96-94 |
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| Conference Information | |
| Committee | MBE |
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| Conference Date | 1996/12/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Estimation of Sagittal Movement of the Temporomandibular Joint from X-ray Television Data Employing Phase of Gabor Wavelet Transform |
| Sub Title (in English) | |
| Keyword(1) | temporomandibular joint |
| Keyword(2) | movement estimation using time-varying image processing |
| Keyword(3) | X-ray television |
| Keyword(4) | optical flow |
| Keyword(5) | Gabor wavelet transform |
| 1st Author's Name | Minoru KENMOCHI |
| 1st Author's Affiliation | Graduate School of Science and Technology, Niigata University() |
| 2nd Author's Name | Toyohiko HAYASHI |
| 2nd Author's Affiliation | Graduate School of Science and Technology, Niigata University |
| 3rd Author's Name | Kazumasa KATOH |
| 3rd Author's Affiliation | First Department of Prosthetic Dentistry, School of Dentistry, Niigata University |
| 4th Author's Name | Michio MIYAKAWA |
| 4th Author's Affiliation | Department of Imormation Engineering, Faculty of Engineering, Niigata University |
| Date | 1996/12/14 |
| Paper # | MBE96-94 |
| Volume (vol) | vol.96 |
| Number (no) | 429 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |