Research on active polarization-based target detection on sea surface

Dongming Lu; Guohua Gu; Jiang Xu; Lixiang Geng

doi:10.1117/12.2320587

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7 September 2018 Research on active polarization-based target detection on sea surface

Dongming Lu, Guohua Gu, Jiang Xu, Lixiang Geng

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Proceedings Volume 10751, Optics and Photonics for Information Processing XII; 107510J (2018) https://doi.org/10.1117/12.2320587
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Since the polarization image contains abundant information of the object, the detecting ability of imaging system would be improved via observing the polarization features of this object. On the basis of analysis to the polarization characteristics, the active polarized imaging method is introduced in this paper, and active polarized imaging platform is built. Through this system, 3 typical samples of aluminum, iron with yellow coating, iron with green coating are adopted to simulate different objects on the sea. By measuring the parameters of amplitude ratio P, phase retardation θ, and completely depolarized coefficient ω_d on the platform, which stand for the surface property of the material, we can testify the accuracy of the idea. The experiments result shows that the measured P and θ values are consistent with Fresnel equations, while for ω_d , the value of seawater differs from that of the other two coating samples dramatically. As a result, it is feasible to discriminate coating target on the sea by measuring the depolarization characteristics.

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Dongming Lu, Guohua Gu, Jiang Xu, and Lixiang Geng "Research on active polarization-based target detection on sea surface", Proc. SPIE 10751, Optics and Photonics for Information Processing XII, 107510J (7 September 2018); https://doi.org/10.1117/12.2320587

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