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| 講演抄録／キーワード | ||
| 講演名 | 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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| 抄録 | （和） | 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. |
| （英） | 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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| キーワード | （和） | PALSAR / polarimetric entropy / laver cultivation / underwater nets / backscatter / / / |
| （英） | PALSAR / polarimetric entropy / laver cultivation / underwater nets / backscatter / / / | |
| 文献情報 | 信学技報, vol. 110, no. 250, SANE2010-83, pp. 87-91, 2010年10月. | |
| 資料番号 | SANE2010-83 | |
| 発行日 | 2010-10-20 (SANE) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| 著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します．(許諾番号：10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| PDFダウンロード | SANE2010-83 |
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| 研究会情報 | |
| 研究会 | SANE |
| 開催期間 | 2010-10-27 - 2010-10-29 |
| 開催地（和） | Ramada Hotel, 済州島（韓国） |
| 開催地（英） | Ramada Hotel, Jeju-do, Korea |
| テーマ（和） | ICSANE 2010 (International Conference on Space, Aeronautical and Navigational Electronics) |
| テーマ（英） | ICSANE 2010 (International Conference on Space, Aeronautical and Navigational Electronics) |
| 講演論文情報の詳細 | |
| 申込み研究会 | SANE |
| 会議コード | 2010-10-SANE |
| 本文の言語 | 英語 |
| タイトル（和） | |
| サブタイトル（和） | |
| タイトル（英） | Estimation of Underwater Marine Cultivation Area based on SAR Polarimetric Entropy |
| サブタイトル（英） | |
| キーワード(1)（和/英） | PALSAR / PALSAR |
| キーワード(2)（和/英） | polarimetric entropy / polarimetric entropy |
| キーワード(3)（和/英） | laver cultivation / laver cultivation |
| キーワード(4)（和/英） | underwater nets / underwater nets |
| キーワード(5)（和/英） | backscatter / backscatter |
| キーワード(6)（和/英） | / |
| キーワード(7)（和/英） | / |
| キーワード(8)（和/英） | / |
| 第1著者 氏名（和/英/ヨミ） | EunSung Won / EunSung Won / |
| 第1著者 所属（和/英） | National Defese Academy (略称： National Defese Academy) National Defese Academy (略称： National Defese Academy) |
| 第2著者 氏名（和/英/ヨミ） | Kazuo Ouchi / Kazuo Ouchi / |
| 第2著者 所属（和/英） | National Defese Academy (略称： National Defese Academy) National Defese Academy (略称： National Defese Academy) |
| 講演者 | 第1著者 |
| 発表日時 | 2010-10-27 15:40:00 |
| 発表時間 | 20分 |
| 申込先研究会 | SANE |
| 資料番号 | SANE2010-83 |
| 巻番号（vol） | vol.110 |
| 号番号（no） | no.250 |
| ページ範囲 | pp.87-91 |
| ページ数 | 5 |
| 発行日 | 2010-10-20 (SANE) |
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