水下偏振成像技术研究及进展  

Development of Underwater Polarization Imaging Technology

作　　者：刘飞 孙少杰 韩平丽 杨奎 邵晓鹏 Liu Fei;Sun Shaojie;Han Pingli;Yang Kui;Shao Xiaopeng(School of Physics and Optoelectronic Engineering,Xidian University,Xi'an,Shaanxi 710071,China;Xi'an Key Laboratory of Computational Imaging,Xi'an,Shaanxi 710071,China;Key Laboratory of Optical Engineering,Chinese Academic of Sciences,Chengdu,Sichuan 610209,China)

机构地区：[1]西安电子科技大学物理与光电工程学院,陕西西安710071 [2]西安市计算成像重点实验室,陕西西安710071 [3]中国科学院光束控制重点实验室,四川成都610209

出　　处：《激光与光电子学进展》2021年第6期1-18,共18页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(62075175,62005203);中国科学院光束控制重点实验室基金(QC20191097)。

摘　　要：受水体自身吸收和悬浮颗粒强散射的作用,水下光学成像存在严重的“帷幔效应”,造成场景中目标细节信息被淹没在背景散射光中,图像对比度大幅降低。由于目标和背景信息所具有的唯一性和差异性,从光场的偏振特性发展出的水下偏振成像技术可以对水下背景散射光进行有效抑制,利用目标信息光与背景散射光的偏振差异特性将二者有效分离,实现清晰化成像。目前,水下偏振成像技术发展迅猛,已在众多领域具有广泛应用和全新的研究成果。系统地介绍了水下偏振成像技术的基本原理、实现算法和成像效果,并依据现有技术的优缺点对水下偏振成像技术的未来发展进行分析展望。Due to the absorption of water body and strong scattering of suspended particles,there is a serious"curtain effect"in underwater optical imaging,which causes the details of the target in the scene to be submerged inthe background scattered light,and the image contrast is greatly reduced.Due to the uniqueness and difference oftarget information and background information,the underwater polarization imaging technology developed from thepolarization characteristics of light field can effectively suppress the scattering light of underwater background.Thepolarization differences between the target information light and the background scattered light are used to separatethem effectively and realize the clear imaging.At present,underwater polarization imaging technology is developingrapidly,which has been widely used in many fields and new research results.This paper systematically introducesthe basic principle,implementation algorithm,and imaging effect of underwater polarization imaging technology,and analyzes and prospects the future development of underwater polarization imaging technology according to theadvantages and disadvantages of existing technologies.

关 键 词：物理光学 偏振 水下成像 散射 图像清晰度 

分 类 号：O436.3[机械工程—光学工程]