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| 講演名 | 2014-10-23 16:20 Combination of Entropy and Coherence of HH/VV-Polarimetric SAR Data for Improvement of Target Detection in the Sea ○Kazuo Ouchi・Chan-Su Yang（KIOST）  SANE2014-90 |
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| 抄録 | （和） | It has been known that the entropy of HH- and VV-polarization synthetic aperture radar (SAR) data is almost equivalent to that derived from quad-polarization data, and that it improves the accuracy of detecting underwater marine cultivation nets. The principle is based on small entropy values of surface scattering from the open sea surface and large values from the dominant random system noise due to little backscatter from the smooth surface above underwater cultivation nets. The same principle can be applied to ship detection, since the entropy is large for multiple scattering from ships against small entropy of the background sea surface. Further, the HH- and VV-polarization images of ships are not correlated because of multiple scattering, yielding little coherence; while those of the sea surface are well correlated. This property can also be used to enhance the ability of ship detection. The present paper examines the ship detection accuracy by comparing the dual-polarization amplitude images, entropy, coherence, and the combinations of entropy and coherence, using TerraSAR-X and Advanced Land Observing Satellite (ALOS) - Phased-Array L-band SAR (PALSAR) images over the Tokyo Bay, Japan. |
| （英） | It has been known that the entropy of HH- and VV-polarization synthetic aperture radar (SAR) data is almost equivalent to that derived from quad-polarization data, and that it improves the accuracy of detecting underwater marine cultivation nets. The principle is based on small entropy values of surface scattering from the open sea surface and large values from the dominant random system noise due to little backscatter from the smooth surface above underwater cultivation nets. The same principle can be applied to ship detection, since the entropy is large for multiple scattering from ships against small entropy of the background sea surface. Further, the HH- and VV-polarization images of ships are not correlated because of multiple scattering, yielding little coherence; while those of the sea surface are well correlated. This property can also be used to enhance the ability of ship detection. The present paper examines the ship detection accuracy by comparing the dual-polarization amplitude images, entropy, coherence, and the combinations of entropy and coherence, using TerraSAR-X and Advanced Land Observing Satellite (ALOS) - Phased-Array L-band SAR (PALSAR) images over the Tokyo Bay, Japan. | |
| キーワード | （和） | Synthetic aperture radar (SAR) / dual-polarization entropy / coherence / target detection / ships / / / |
| （英） | Synthetic aperture radar (SAR) / dual-polarization entropy / coherence / target detection / ships / / / | |
| 文献情報 | 信学技報, vol. 114, no. 264, SANE2014-90, pp. 145-150, 2014年10月. | |
| 資料番号 | SANE2014-90 | |
| 発行日 | 2014-10-15 (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 | SANE2014-90 |
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| 研究会情報 | |
| 研究会 | SANE |
| 開催期間 | 2014-10-22 - 2014-10-24 |
| 開催地（和） | Ramada Plaza Melaka, Malacca, Malaysia |
| 開催地（英） | Ramada Plaza Melaka, Malacca, Malaysia |
| テーマ（和） | ICSANE 2014 (International Conference on Space, Aeronautical and Navigational Electronics) |
| テーマ（英） | ICSANE 2014 (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 | 2014-10-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） | Combination of Entropy and Coherence of HH/VV-Polarimetric SAR Data for Improvement of Target Detection in the Sea |
| サブタイトル（英） | |
| キーワード(1)（和/英） | Synthetic aperture radar (SAR) / Synthetic aperture radar (SAR) |
| キーワード(2)（和/英） | dual-polarization entropy / dual-polarization entropy |
| キーワード(3)（和/英） | coherence / coherence |
| キーワード(4)（和/英） | target detection / target detection |
| キーワード(5)（和/英） | ships / ships |
| 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） | Kazuo Ouchi / Kazuo Ouchi / |
| 第1著者 所属（和/英） | Korea Institute of Ocean Science and Technology (略称： KIOST) Korea Institute of Ocean Science and Technology (略称： KIOST) |
| 第2著者 氏名（和/英/ヨミ） | Chan-Su Yang / Chan-Su Yang / |
| 第2著者 所属（和/英） | Korea Institute of Ocean Science and Technology (略称： KIOST) Korea Institute of Ocean Science and Technology (略称： KIOST) |
| 講演者 | 第1著者 |
| 発表日時 | 2014-10-23 16:20:00 |
| 発表時間 | 20分 |
| 申込先研究会 | SANE |
| 資料番号 | SANE2014-90 |
| 巻番号（vol） | vol.114 |
| 号番号（no） | no.264 |
| ページ範囲 | pp.145-150 |
| ページ数 | 6 |
| 発行日 | 2014-10-15 (SANE) |
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