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A study of oil spill detection using ASAR images
作者姓名:WANG Guiwu  ZHANG Yuanzhi  LIN Hui
作者单位:Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Shatin, NT, Hong Kong 
基金项目:The research is partly supported by a CUHK Direct Grant project under contract No 0455188
摘    要:The oil spilled worldwide causes ecological disasters that result in enormous damages to the quality of marine environment, and great expenses on clear-up operations are needed. Due to its wide coverage and day-night all-weather observation capability, Synthetic Aperture Radar (SAR) is an important tool for oil spill monitoring and detection. C-band SAR is well adapted to detect oil pollution because oil slicks dampen the Bragg waves and reduce radar backscattering coefficients. In order to detect the area of oil slicks, the algorithm consists of these steps:Preprocessing, Masking of land areas, Detection of dark spots, Spot feature extraction, Dark spot classification. In this paper, the authors examined two coastal regions around Hong Kong and Yantai, China. The obtained results performed on Envisat ASAR images have demonstrated that it is efficient to detect oil spill around the coastal regions. The methodology still needs to be refined with the collection of more SAR data in the near future.

关 键 词:合成孔径雷达图像  泄漏检测  石油  中国沿海地区  海洋环境质量  生态灾难  观测能力  泄漏监测
收稿时间:9/9/2007 12:00:00 AM
修稿时间:2008/2/27 0:00:00

A study of oil spill detection using ASAR images
WANG Guiwu,ZHANG Yuanzhi,LIN Hui.A study of oil spill detection using ASAR images[J].Acta Oceanologica Sinica,2009,28(4):32-37.
Authors:WANG Guiwu  ZHANG Yuanzhi and LIN Hui
Institution:Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Shatin, NT, Hong Kong
Abstract:The oil spilled worldwide causes ecological disasters that result in enormous damages to the quality of marine environment, and great expenses on clear-up operations are needed. Due to its wide coverage and day-night all-weather observation capability, Synthetic Aperture Radar (SAR) is an important tool for oil spill monitoring and detection. C-band SAR is well adapted to detect oil pollution because oil slicks dampen the Bragg waves and reduce radar backscattering coefficients. In order to detect the area ...
Keywords:Oil spill  dectection  SAR imagery  
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