| Presentation | 2024-01-19 Development of Riemannian Quaternion Self-Organizing Map and Its Application in Full-Polarimetric GPR Landmine Detection Yicheng Song, Ryo Natsuaki, Akira Hirose, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Ground penetrating radar (GPR) based landmine detection has advantages such as high safety and high efficiency. There are various methods to process the data obtained from GPR systems. One of the commonly used methods is to visualize the quaternion-type polarization data by quaternion self-organizing map (QSOM). However, QSOM can not take into account the geometric property of the polarization data. Then, degree-of-polarization (DoP) error is introduced in the self-organization process of QSOM, which leads to unsatisfactory visualization results. To overcome the limitation, in this report, we introduce a novel processing, Riemannian quaternion self-organizing map (RQSOM), which takes into account the geometric property to eliminate the DoP error with the help of geodesics in Riemannian geometry. We analyze its basic dynamics and compare it with that of QSOM. We conduct experiments to visualize a mock plastic landmine with QSOM and RQSOM. The experimental results show that RQSOM realizes expected self-organization dynamics, thereby achieving better visualization results compared to QSOM. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Riemannian quaternion self-organizing map (RQSOM)degree-of-polarization (DoP) error |
| Paper # | SANE2023-97 |
| Date of Issue | 2024-01-11 (SANE) |
| Conference Information | |
| Committee | SANE |
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| Conference Date | 2024/1/18(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Toshio Wakayama(Mitsubishi Electric) |
| Vice Chair | Takeshi Amishima(Meiji Univ.) / Atsushi Kezuka(ENRI) |
| Secretary | Takeshi Amishima(Mitsubishi Electric) / Atsushi Kezuka(Univ. of Electro-Comm) |
| Assistant | Junichi Naganawa(ENRI) / Yoshihiko Akamine(TRDI) |
| Paper Information | |
| Registration To | Technical Committee on Space, Aeronautical and Navigational Electronics |
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| Language | ENG-JTITLE |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Development of Riemannian Quaternion Self-Organizing Map and Its Application in Full-Polarimetric GPR Landmine Detection |
| Sub Title (in English) | |
| Keyword(1) | Riemannian quaternion self-organizing map (RQSOM)degree-of-polarization (DoP) error |
| 1st Author's Name | Yicheng Song |
| 1st Author's Affiliation | The University of Tokyo(UTokyo) |
| 2nd Author's Name | Ryo Natsuaki |
| 2nd Author's Affiliation | The University of Tokyo(UTokyo) |
| 3rd Author's Name | Akira Hirose |
| 3rd Author's Affiliation | The University of Tokyo(UTokyo) |
| Date | 2024-01-19 |
| Paper # | SANE2023-97 |
| Volume (vol) | vol.123 |
| Number (no) | SANE-341 |
| Page | pp.pp.41-46(SANE), |
| #Pages | 6 |
| Date of Issue | 2024-01-11 (SANE) |