| Presentation | 2001/5/10 Stabilization in distortion correction of endoscopic images using normalized error and distortion center estimation by cross ratio Tetsuzo Yamaguchi, Yoshikazu Nakajima, Masahiko Nakamoto, Yshinobu Sato, Takashi Nishii, Sinichi Tamura, Nobuhiko Sugano, Kazuo Yonenobu, Takahiro Ochi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper describes an improvement due to stabilization on a technique for estimation of endoscopic distortion parameter. The previous technique estimates sequentially all of distortion parameters. In this study, applying the other technique with cross ratio on the previous technique, we separate distortion center and polynomial coefficient on processes of the parameters estimation. This not only improves a robustly of the estimation, but also removes the necessity for extensive threshold parameter tuning. Increased the number of the polynomial coefficients the behavior of estimation becomes unstable for not normalizing on the distance the evaluation function of the technique. The evaluation function was normalized, and the technique was further stabilized. |
| Keyword(in Japanese) | (See Japanese page) |
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| Paper # | PRMU2001-1,MI2001-13 |
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| Committee | PRMU |
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| Conference Date | 2001/5/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Stabilization in distortion correction of endoscopic images using normalized error and distortion center estimation by cross ratio |
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| 1st Author's Name | Tetsuzo Yamaguchi |
| 1st Author's Affiliation | Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Osaka University Graduate School of Medicine() |
| 2nd Author's Name | Yoshikazu Nakajima |
| 2nd Author's Affiliation | Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Osaka University Graduate School of Medicine |
| 3rd Author's Name | Masahiko Nakamoto |
| 3rd Author's Affiliation | Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Osaka University Graduate School of Medicine |
| 4th Author's Name | Yshinobu Sato |
| 4th Author's Affiliation | Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Osaka University Graduate School of Medicine |
| 5th Author's Name | Takashi Nishii |
| 5th Author's Affiliation | Division of Interdisciplinary Image Analysis Department of Medical Robotics and Image Sciences Osaka University Graduate School of Medicine |
| 6th Author's Name | Sinichi Tamura |
| 6th Author's Affiliation | Department of Computer Assisted Orthopaedic Surgery, Osaka University Graduat School of Medicine |
| 7th Author's Name | Nobuhiko Sugano |
| 7th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine |
| 8th Author's Name | Kazuo Yonenobu |
| 8th Author's Affiliation | Department of Orthopaedic Surgery, Osaka University Graduate School of Medicine |
| 9th Author's Name | Takahiro Ochi |
| 9th Author's Affiliation | Department of Computer Assisted Orthopaedic Surgery, Osaka University Graduat School of Medicine |
| Date | 2001/5/10 |
| Paper # | PRMU2001-1,MI2001-13 |
| Volume (vol) | vol.101 |
| Number (no) | 57 |
| Page | pp.pp.- |
| #Pages | 8 |
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