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Paper Abstract and Keywords
Presentation 2022-12-16 11:45
General 5-component Scattering Power Decomposition with Unitary Transformation
Yoshio Yamaguchi (Niigata Univ.), Gulab Singh (IITB, India), Ryu Sugimoto (AIST) SANE2022-80
Abstract (in Japanese) (See Japanese page) 
(in English) Polarimetric synthetic aperture radar (PolSAR) provides us with a full 3x3 coherency matrix that bears 9 real-valued and independent polarimetric parameters of the imaging window. We propose a new decomposition method of the coherency matrix in which 2 consecutive unitary transformations are carried out to null T13 element. The transformation reduces polarimetric parameters from 9 to 7, which is best-fit for 5-component scattering power decomposition. Five scattering powers corresponding to physical scattering models can be retrieved directly. An alternative nulling T23 scheme is also compared using ALOS2-PALSAR2 San Francisco quad pol data set. It is found that final decomposition result is dependent on the choice of nulling element and corresponding expansion matrices even in 100% utilization of polarimetric parameters (7/7). Intuitive color images are obtained from nulling T23 element. These scattering powers can be used to display superb polarimetric RBG images, and are further applicable for polarimetric calibration, classification, and validation, etc.
Keyword (in Japanese) (See Japanese page) 
(in English) PolSAR / Coherency matrix / Scattering power decomposition / Unitary transformation / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 312, SANE2022-80, pp. 85-90, Dec. 2022.
Paper # SANE2022-80 
Date of Issue 2022-12-08 (SANE) 
ISSN Online edition: ISSN 2432-6380
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)
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Conference Information
Committee SANE  
Conference Date 2022-12-15 - 2022-12-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki Public Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ICSANE 
Paper Information
Registration To SANE 
Conference Code 2022-12-SANE 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) General 5-component Scattering Power Decomposition with Unitary Transformation 
Sub Title (in English)  
Keyword(1) PolSAR  
Keyword(2) Coherency matrix  
Keyword(3) Scattering power decomposition  
Keyword(4) Unitary transformation  
1st Author's Name Yoshio Yamaguchi  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Gulab Singh  
2nd Author's Affiliation Indian Institute of Technology Bombay (IITB, India)
3rd Author's Name Ryu Sugimoto  
3rd Author's Affiliation Advanced Industrial Science and Technology (AIST)
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Speaker Author-1 
Date Time 2022-12-16 11:45:00 
Presentation Time 20 minutes 
Registration for SANE 
Paper # SANE2022-80 
Volume (vol) vol.122 
Number (no) no.312 
Page pp.85-90 
Date of Issue 2022-12-08 (SANE) 

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