Identification of marine oil spills based on visible light polarization characteristics

Hong-yu Sun; Lian-ji Ma; Jia-nan Liu; Jia-yu Wang; Hao-Dong Shi; Qiang Fu; Ying-chao Li; Hui-Lin Jiang

doi:10.1117/12.2689115

31 July 2023 Identification of marine oil spills based on visible light polarization characteristics

Hong-yu Sun, Lian-ji Ma, Jia-nan Liu, Jia-yu Wang, Hao-Dong Shi, Qiang Fu, Ying-chao Li, Hui-Lin Jiang

Proceedings Volume 12747, Third International Conference on Optics and Image Processing (ICOIP 2023); 127471J (2023) https://doi.org/10.1117/12.2689115
Event: Third International Conference on Optics and Image Processing (ICOIP 2023), 2023, Hangzhou, China

Abstract

Aiming to solve the problems of high false alarm rate and single oil-type identification in the existing sea surface oil spill detection techniques, based on the Fresnel theory, a polarization degree model of rough sea surface oil spill under different azimuth and zenith angles is established, and its effectiveness is analyzed along with the influence of polarization distribution. We conducted a visible light polarization bidirectional reflectance distribution test to obtain the visible light polarization degree images of four typical marine oil spills, including those involving heavy oil, crude oil, gasoline, and diesel, at different observation azimuths and zenith angles, and compared them by extracting image gray data. By analyzing the difference in polarization degrees of different oil types, the experiment proved the correctness of the theoretical model. The test results indicate that the visible light polarization characteristics of different oil spills are evidently different. The polarization degree information is influenced by the observation angle. It is easier to distinguish oil types inside view than that in overhead view. The use of visible light polarization to distinguish oil species is a useful supplement to traditional oil spill detection methods and is of great significance to improving the ability of marine pollution control.

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Hong-yu Sun, Lian-ji Ma, Jia-nan Liu, Jia-yu Wang, Hao-Dong Shi, Qiang Fu, Ying-chao Li, and Hui-Lin Jiang "Identification of marine oil spills based on visible light polarization characteristics", Proc. SPIE 12747, Third International Conference on Optics and Image Processing (ICOIP 2023), 127471J (31 July 2023); https://doi.org/10.1117/12.2689115

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KEYWORDS

Polarization

Visible radiation

Reflection

Oceanography

Polarized light

Ocean optics

Wind speed

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