| Presentation | 2022-03-02 XMCD-CT Reconstruction Using Compressed Sensing Tsukito Takizawa, Hayaru Shouno, Masaichiro Mizumaki, Motohiro Suzuki, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Observation of the magnetic domain structure is important for understanding the magnetic properties of materials including practical magnetic materials, because the magnetic domain structure reflects the fundamental magnetic properties of materials. Suzuki et al. have developed a hard X-ray magnetic tomography method using X-ray magnetic circular dichroism (XMCD). By using XMCD measurements from many different sample angles, the magnetization distribution can be reconstructed using conventional CT reconstruction calculations. In addition, in recent years, research on measurement with a reduced number of directions, called sparse-view CT, has been vigorously conducted in order to reduce the radiation dose and measurement time, and compressed sensing has been considered to restore the signal from sparse projection data with strict or high accuracy. In this study, we apply a reconstruction method incorporating compressive sensing to the conventional CT reconstruction algorithm for XMCD data obtained by sparse-view CT in order to shorten the measurement time. It is suggested that the image reconstruction method incorporating compressive sensing is effective in reducing artifacts on sparse projection data obtained by reducing the number of projections for magnetic samples. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | XMCD / Computed Tomography / Image Reconstruction / Compressed Sensing |
| Paper # | NC2021-58 |
| Date of Issue | 2022-02-23 (NC) |
| Conference Information | |
| Committee | MBE / NC |
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| Conference Date | 2022/3/2(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Ryuhei Okuno(Setsunan Univ.) / Rieko Osu(Waseda Univ.) |
| Vice Chair | Junichi Hori(Niigata Univ.) / Hiroshi Yamakawa(Univ of Tokyo) |
| Secretary | Junichi Hori(Osaka Electro-Communication Univ) / Hiroshi Yamakawa(ATR) |
| Assistant | Jun Akazawa(Meiji Univ. of Integrative Medicine) / Emi Yuda(Tohoku Univ) / Nobuhiko Wagatsuma(Toho Univ.) / Tomoki Kurikawa(KMU) |
| Paper Information | |
| Registration To | Technical Committee on ME and Bio Cybernetics / Technical Committee on Neurocomputing |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | XMCD-CT Reconstruction Using Compressed Sensing |
| Sub Title (in English) | |
| Keyword(1) | XMCD |
| Keyword(2) | Computed Tomography |
| Keyword(3) | Image Reconstruction |
| Keyword(4) | Compressed Sensing |
| 1st Author's Name | Tsukito Takizawa |
| 1st Author's Affiliation | The University of Electro-Communications(The Univ. of Electro-Communications) |
| 2nd Author's Name | Hayaru Shouno |
| 2nd Author's Affiliation | The University of Electro-Communications(The Univ. of Electro-Communications) |
| 3rd Author's Name | Masaichiro Mizumaki |
| 3rd Author's Affiliation | Japan Synchrotron Radiation Research Institute(JASRI) |
| 4th Author's Name | Motohiro Suzuki |
| 4th Author's Affiliation | Kwansei Gakuin University(Kwansei Gakuin Univ.) |
| Date | 2022-03-02 |
| Paper # | NC2021-58 |
| Volume (vol) | vol.121 |
| Number (no) | NC-390 |
| Page | pp.pp.62-67(NC), |
| #Pages | 6 |
| Date of Issue | 2022-02-23 (NC) |