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Paper Abstract and Keywords
Presentation 2024-01-22 10:30
Fundamental study on change detection in flooded area using quad-pol. SAR data -- An approach based on eigenvalues/eigenvectors analysis --
Masaki Watabe, Ryoichi Sato, Hiroyoshi Yamada, Yoshio Yamaguchi (Niigata Univ.) PN2023-48 EMT2023-88 MWPTHz2023-76
Abstract (in Japanese) (See Japanese page) 
(in English) In this research, we carry out PolSAR image analysis for accurately detecting flooded residential area, by using quad-polarimetric SAR data acquired by space-borne SAR as ALOS-2/PALSAR-2. In previous researches, it was sometimes difficult to detect the flood affected residential area from images using difference of the polarimetric indicators between before and after the flood obtained by eigenvalue/eigenvector analysis, since the difference is often small. Here we try to propose a simple change detection procedure for classifying flood affected residential area, by considering changes in the scattering mechanism of each eigenvector and angles between the eigenvectors before and after the flood. We show some experimental results of ALOS-2/PALSAR-2 data including flooded residential area, to confirm the validity of the proposed simple change detection procedure.
Keyword (in Japanese) (See Japanese page) 
(in English) flood observation / change detection / radar polarimetry / eigenvalue/eigen vector analysis / scattering mechanism / angle alpha / angle beta /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 350, EMT2023-88, pp. 7-10, Jan. 2024.
Paper # EMT2023-88 
Date of Issue 2024-01-15 (PN, EMT, MWPTHz) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF PN2023-48 EMT2023-88 MWPTHz2023-76

Conference Information
Committee EMT PN MWPTHz IEE-EMT  
Conference Date 2024-01-22 - 2024-01-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. Yoshida Campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EMT 
Conference Code 2024-01-EMT-PN-MWPTHz-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fundamental study on change detection in flooded area using quad-pol. SAR data 
Sub Title (in English) An approach based on eigenvalues/eigenvectors analysis 
Keyword(1) flood observation  
Keyword(2) change detection  
Keyword(3) radar polarimetry  
Keyword(4) eigenvalue/eigen vector analysis  
Keyword(5) scattering mechanism  
Keyword(6) angle alpha  
Keyword(7) angle beta  
Keyword(8)  
1st Author's Name Masaki Watabe  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Ryoichi Sato  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Hiroyoshi Yamada  
3rd Author's Affiliation Niigata University (Niigata Univ.)
4th Author's Name Yoshio Yamaguchi  
4th Author's Affiliation Niigata University (Niigata Univ.)
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Speaker Author-1 
Date Time 2024-01-22 10:30:00 
Presentation Time 25 minutes 
Registration for EMT 
Paper # PN2023-48, EMT2023-88, MWPTHz2023-76 
Volume (vol) vol.123 
Number (no) no.349(PN), no.350(EMT), no.351(MWPTHz) 
Page pp.7-10 
#Pages 4 
Date of Issue 2024-01-15 (PN, EMT, MWPTHz) 

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