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| Presentation | 2010-10-27 15:40 Estimation of Underwater Marine Cultivation Area based on SAR Polarimetric Entropy EunSung Won, Kazuo Ouchi (National Defese Academy)  SANE2010-83 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper describes a technique of extracting underwater laver cultivation nets by using entropy analysis from ALOS-PALSAR polarimetric data in the waters around Futsu Horn, Japan. The method is based on the difference in the backscattered fields from the almost specular surface above the laver nets and slightly rough surface in open water. Under weak to moderate wind conditions, the backscattered field from open water is dominated by the surface (Bragg) scattering. While the laver nets are placed at a few centimeter below the sea surface, and therefore waves are damped, resulting in the specular surface causing little radar backscatter. This difference in radar cross section (RCS) can be detected by X-band TerraSAR-X, but the difference is too small to detect because both the surfaces are effectively smooth for PALSAR L-band microwave. However, since the radar backscatter from the specular surface is at noise level, the image can be regarded as arising from a random process of various scattering contributions. Polarimetric entropy should then be higher than the single-bounce surface scattering from the open water. We will show that the polarimetric entropy is an effective means of identifying the underwater laver nets in comparison with the RCS- based method from PALSAR L-band data. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | PALSAR / polarimetric entropy / laver cultivation / underwater nets / backscatter / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 250, SANE2010-83, pp. 87-91, Oct. 2010. | |
| Paper # | SANE2010-83 | |
| Date of Issue | 2010-10-20 (SANE) | |
| ISSN | Print edition: ISSN 0913-5685 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 | SANE2010-83 |
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| Conference Information | |
| Committee | SANE |
| Conference Date | 2010-10-27 - 2010-10-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ramada Hotel, Jeju-do, Korea |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | ICSANE 2010 (International Conference on Space, Aeronautical and Navigational Electronics) |
| Paper Information | |
| Registration To | SANE |
| Conference Code | 2010-10-SANE |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of Underwater Marine Cultivation Area based on SAR Polarimetric Entropy |
| Sub Title (in English) | |
| Keyword(1) | PALSAR |
| Keyword(2) | polarimetric entropy |
| Keyword(3) | laver cultivation |
| Keyword(4) | underwater nets |
| Keyword(5) | backscatter |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | EunSung Won |
| 1st Author's Affiliation | National Defese Academy (National Defese Academy) |
| 2nd Author's Name | Kazuo Ouchi |
| 2nd Author's Affiliation | National Defese Academy (National Defese Academy) |
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| Speaker | Author-1 |
| Date Time | 2010-10-27 15:40:00 |
| Presentation Time | 20 minutes |
| Registration for | SANE |
| Paper # | SANE2010-83 |
| Volume (vol) | vol.110 |
| Number (no) | no.250 |
| Page | pp.87-91 |
| #Pages | 5 |
| Date of Issue | 2010-10-20 (SANE) |
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