| Presentation | 2004/8/13 Three dimensional morphometry offish body structure by X-ray CT : Application for numerically estimated acoustic scattering of a fish Tsuyoshi OKUMURA, Toshikazu MASUYA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | To estimate the acoustic back scattering cross section of a fish, three dimensional morphometry of the fish body structure by X-ray computed tomography (X-ray CT) and numerical calculation of the acoustic scattering of a fish by the boundary element method (BEM) is tested on a sample fish. The shapes of four parts of fish body, namely, the body surface, swim bladder, bones, and otolithes, are successfully extracted from the tomograms. However, extracting the shapes of internal organs, such as, the stomach, liver, is still difficult. The meshed surface data, the triangulated fish body and swim bladder surfaces, are automatically generated and used for the input data of the BEM calculation. The shape of the bones is, however, too complex to be triangulated automatically. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | X-ray CT / target strength / boundary element method |
| Paper # | US2004-37 |
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| Conference Information | |
| Committee | US |
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| Conference Date | 2004/8/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Ultrasonics (US) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Three dimensional morphometry offish body structure by X-ray CT : Application for numerically estimated acoustic scattering of a fish |
| Sub Title (in English) | |
| Keyword(1) | X-ray CT |
| Keyword(2) | target strength |
| Keyword(3) | boundary element method |
| 1st Author's Name | Tsuyoshi OKUMURA |
| 1st Author's Affiliation | National Research Institute of Fisheries Engineering Fisheries Research Agency Faculty of Engineering() |
| 2nd Author's Name | Toshikazu MASUYA |
| 2nd Author's Affiliation | National Research Institute of Fisheries Engineering Fisheries Research Agency Faculty of Engineering |
| Date | 2004/8/13 |
| Paper # | US2004-37 |
| Volume (vol) | vol.104 |
| Number (no) | 254 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |