| Presentation | 2001/7/20 A Multiple Smoothing Coefficient Algorithm and Data Reconstruction in Impedance Computed Imaging Akemi Suzuki, Akihiko Uchiyama, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A fixed coefficient method is one of the effective algorithms, which improves the ill-conditioning to solve the divergence problem in impedance computed tomography. However, the determination of a good smoothing coefficient λ depends on the mass experiments and the one's experience. We have done some research on an automatic method to calculate λ. On the first step, in this paper, a fixed coefficient method using multiple smoothing coefficients is introduced. We have reconstructed the measurement data of our phantoms in order to improve the ill-conditioning problem and the precision of images. As a result, the performance of the data reconstruction is closely related to the choice of the coefficient λ. A large λ distorts the information and a small one has little effect and sometimes fails to obtain any image. Besides, the compensation effect of the coefficient λ will be different according to a change in the compensation function. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | impedance CT / data reconstruction / smoothing coefficient / algorithm / ill-conditioning |
| Paper # | MI2001-25 |
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| Conference Information | |
| Committee | MI |
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| Conference Date | 2001/7/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Medical Imaging (MI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Multiple Smoothing Coefficient Algorithm and Data Reconstruction in Impedance Computed Imaging |
| Sub Title (in English) | |
| Keyword(1) | impedance CT |
| Keyword(2) | data reconstruction |
| Keyword(3) | smoothing coefficient |
| Keyword(4) | algorithm |
| Keyword(5) | ill-conditioning |
| 1st Author's Name | Akemi Suzuki |
| 1st Author's Affiliation | Department of Electronics, Information and Communication Engineering, School of Science and Engineering, Waseda University() |
| 2nd Author's Name | Akihiko Uchiyama |
| 2nd Author's Affiliation | Department of Electronics, Information and Communication Engineering, School of Science and Engineering, Waseda University |
| Date | 2001/7/20 |
| Paper # | MI2001-25 |
| Volume (vol) | vol.101 |
| Number (no) | 239 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |