Presentation 2022-03-02
Classification of human activities by a polarimetric remote sensing system based on quaternion self-organizing map
Ryogo Saito, Naoshi Sugawara, Ryo Natsuaki, Akira Hirose,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We propose a polarimetric remote sensing system to classify daily movements of humans such as walking and standing. We expect that anomaly in the body is detected by using electromagnetic waves and neural networks not only from biological information such as human heartbeat and respiration, but also from daily movements. The feature of this study is to acquire the Stokes vector corresponding Poincare vector as time series from the signals obtained by transmitting and receiving polarized electromagnetic wave, and to classify the human body movement with a quaternion self-organizing map (QSOM). We obtain the time-series information of polarization for various movements to analyze the changes in the polarization states in each movement. Then, we classify the human body movements adaptively by QSOM.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Self-organizing map(SOM) / polarization / quaternion nural network(QNN)
Paper # NC2021-57
Date of Issue 2022-02-23 (NC)

Conference Information
Committee MBE / NC
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
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Classification of human activities by a polarimetric remote sensing system based on quaternion self-organizing map
Sub Title (in English)
Keyword(1) Self-organizing map(SOM)
Keyword(2) polarization
Keyword(3) quaternion nural network(QNN)
1st Author's Name Ryogo Saito
1st Author's Affiliation The University of Tokyo(Univ. Tokyo)
2nd Author's Name Naoshi Sugawara
2nd Author's Affiliation The University of Tokyo(Univ. Tokyo)
3rd Author's Name Ryo Natsuaki
3rd Author's Affiliation The University of Tokyo(Univ. Tokyo)
4th Author's Name Akira Hirose
4th Author's Affiliation The University of Tokyo(Univ. Tokyo)
Date 2022-03-02
Paper # NC2021-57
Volume (vol) vol.121
Number (no) NC-390
Page pp.pp.56-61(NC),
#Pages 6
Date of Issue 2022-02-23 (NC)