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24 November 2021 Target detection in haze background by applying polarimetric imaging dehazing method
Yu Lei, Bing Lei
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Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 120653U (2021) https://doi.org/10.1117/12.2607136
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China
Abstract
Polarimetric imaging is a technology which collects the polarimetric information of targets and forms an image. It has been proven that polarimetric imaging method has unique advantages at the area of target detection in the haze, dust and other scattering medium background. In this paper, a new polarimetric dehazing method is proposed based on low-pass filtering techniques. A linear polarization camera is employed to grab images with four different polarization directions, and the low-pass filtering operation is applied to remove the high-frequency components which contain the information of noise and targets, which will improve the accuracy of estimation of airlight, and then the haze background and objects in these images can be separated based on the difference of their polarization characteristics. For the purpose of verifying the effectiveness of the proposed method, multiple groups of images of advertising boards and buildings have been grabbed and processed by this method, and the experimental results indicate that the presented scheme can reduce the adverse influence of haze and improve the visual range effectively.
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Yu Lei and Bing Lei "Target detection in haze background by applying polarimetric imaging dehazing method", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 120653U (24 November 2021); https://doi.org/10.1117/12.2607136
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KEYWORDS
Polarimetry
Target detection
Polarization
Atmospheric modeling
Light scattering
Scattering
Transmittance
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