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Article

Oil Spill Discrimination by Using General Compact Polarimetric SAR Features

1
School of Computer and Communication Engineering, University of Science and Technology Beijing, Beijing 100083, China
2
Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
3
National Key Lab of Microwave Imaging Technology, Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China
4
Shanghai Institute of Satellite Engineering, Shanghai 200240, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(3), 479; https://doi.org/10.3390/rs12030479
Received: 31 December 2019 / Revised: 24 January 2020 / Accepted: 27 January 2020 / Published: 3 February 2020
(This article belongs to the Special Issue Remote Sensing of the Oceans: Blue Economy and Marine Pollution)
Ocean surveillance is one of the important applications of synthetic aperture radar (SAR). Polarimetric SAR provides multi-channel information and shows great potential for monitoring ocean dynamic environments. Oil spills are a form of pollution that can seriously affect the marine ecosystem. Dual-polarimetric SAR systems are usually used for routine ocean surface monitoring. The hybrid dual-pol SAR imaging mode, known as compact polarimetry, can provide more information than the conventional dual-pol imaging modes. However, backscatter measurements of the hybrid dual-pol mode depend on the transmit wave polarization, which results in lacking consistent interpretation for various compact polarimetric (CP) images. In this study, we will explore the capability of different CP modes for oil spill detection and discrimination. Firstly, we introduce the general CP formalism method to formulate an arbitrary CP backscattered wave, such that the target scattering vector is characterized in the same framework for all CP modes. Then, a recently proposed CP decomposition method is investigated to reveal the backscattering properties of oil spills and their look-alikes. Both intensity and polarimetric features are studied to analyze the optimal CP mode for oil spill observation. Spaceborne polarimetric SAR data sets collected over natural oil slicks and experimental biogenic slicks are used to demonstrate the capability of the general CP mode for ocean surface surveillance. View Full-Text
Keywords: general compact polarimetry; hybrid dual-polarization; oil spill discrimination; target decomposition; ocean environment general compact polarimetry; hybrid dual-polarization; oil spill discrimination; target decomposition; ocean environment
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MDPI and ACS Style

Yin, J.; Yang, J.; Zhou, L.; Xu, L. Oil Spill Discrimination by Using General Compact Polarimetric SAR Features. Remote Sens. 2020, 12, 479. https://doi.org/10.3390/rs12030479

AMA Style

Yin J, Yang J, Zhou L, Xu L. Oil Spill Discrimination by Using General Compact Polarimetric SAR Features. Remote Sensing. 2020; 12(3):479. https://doi.org/10.3390/rs12030479

Chicago/Turabian Style

Yin, Junjun, Jian Yang, Liangjiang Zhou, and Liying Xu. 2020. "Oil Spill Discrimination by Using General Compact Polarimetric SAR Features" Remote Sensing 12, no. 3: 479. https://doi.org/10.3390/rs12030479

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