| Presentation | 2010-06-29 The calibration-less estimation of camera model of oblique-viewing endoscope for AR surgery Hiroki MORIGUCHI, Yoshihiro KURODA, Hidekazu TAKIUCHI, Masataka IMURA, Shingo YAMAMOTO, Osamu OSHIRO, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In AR surgery, a surgeon is supported by the 3D organ model that overlaid on the surgical view. When using an oblique-viewing scope, the rotation of cylinder changes the optical axis of the endoscopic camera. Thus, the angle of rotation is required to estimate the viewing direction in addition to the posture of the cylinder. In a previous study, rotary encoder is used for acquisition of the rotational angle of the cylinder. However, calibration is required since the cylinder makes a precession movement against ideal rotation axis. Besides, the rotary encoder attached to the endoscope tends to be big. In this study, we calculate the posture of the cylinder against the camera head by using optical marker and accelerometer. Accelerometer detects the orientation of gravity. The posture of the cylinder is calculated from the change of the orientation of gravity. The proposed method enables to estimate the viewing direction of oblique-viewing endoscope camera without calibration. In this presentation, we report the details of the proposed method and the result of AR images obtained by using our method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | AR surgery / Oblique-viewing endoscope / Calibration / Accelerometer |
| Paper # | MVE2010-30 |
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| Committee | MVE |
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| Conference Date | 2010/6/22(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Media Experience and Virtual Environment (MVE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The calibration-less estimation of camera model of oblique-viewing endoscope for AR surgery |
| Sub Title (in English) | |
| Keyword(1) | AR surgery |
| Keyword(2) | Oblique-viewing endoscope |
| Keyword(3) | Calibration |
| Keyword(4) | Accelerometer |
| 1st Author's Name | Hiroki MORIGUCHI |
| 1st Author's Affiliation | Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Yoshihiro KURODA |
| 2nd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Hidekazu TAKIUCHI |
| 3rd Author's Affiliation | Department of Urology, Nishinomiya Municipal Central Hospital |
| 4th Author's Name | Masataka IMURA |
| 4th Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 5th Author's Name | Shingo YAMAMOTO |
| 5th Author's Affiliation | Department of Urology, Hyogo College of Medicine |
| 6th Author's Name | Osamu OSHIRO |
| 6th Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| Date | 2010-06-29 |
| Paper # | MVE2010-30 |
| Volume (vol) | vol.110 |
| Number (no) | 108 |
| Page | pp.pp.- |
| #Pages | 4 |
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