基于Mueller矩阵的水下偏振成像方法  

Underwater Polarization Imaging Based on Mueller Matrix

作　　者：韩平丽 范颖颖 杨波[1,2] 刘飞 邵晓鹏[1,2] HAN Pingli;FAN Yingying;YANG Bo;LIU Fei;SHAO Xiaopeng(School of Physics and Optoelectronic Engineering,Xidian University,Xi’an 710071,China;Xi’an Key Laboratory of Computational Imaging,Xi’an 710071,China)

机构地区：[1]西安电子科技大学光电工程学院,陕西西安710071 [2]西安市计算成像重点实验室,陕西西安710071

出　　处：《水下无人系统学报》2023年第4期624-632,共9页Journal of Unmanned Undersea Systems

基　　金：国家自然科学基金青年项目(62005203);国家自然科学基金面上项目(62075175);中央高校基本科研业务费专项资金资助(ZYTS23125);中国科学院西安光学精密机械研究所光电跟踪与测量技术实验室开放基金(B022050002)。

摘　　要：水下偏振成像技术利用目标信息光与背景散射光的偏振特性差异实现清晰成像,在水下目标探测和识别等领域有重要价值。但多材质目标表面反射情况和退偏效应存在差异,无法有效提取上述偏振特性差异。针对这一问题,文中提出一种基于Mueller矩阵的水下偏振成像方法。利用Mueller矩阵探测水下场景中的光强信息以及目标物与水体的偏振信息,精确求解浑浊场景中目标物与背景散射光的偏振度信息,结合传统水下成像技术构建基于Mueller矩阵的水下偏振成像方法,有效分离目标信息光与背景散射光,提升成像质量,实现水下多材质目标物的清晰重建。Underwater polarization imaging method uses the polarization characteristic difference between the target information light and the backscattered light to achieve clear imaging,which is of great value in the field of underwater target detection and recognition.However,due to the differences in the reflection and depolarization effects on the surface of objects made of diverse materials,the polarization characteristic difference cannot be effectively extracted.To address this issue,an underwater polarization imaging method based on Mueller matrix was proposed.The Mueller matrix was used to detect the light intensity information and the polarization information of the underwater target and the water,and the polarization information of the background scattered light and the target in the turbid water was accurately solved.Combined with traditional underwater imaging methods,an underwater polarization imaging method based on Mueller matrix was constructed to effectively separate the target information light from the background scattered light,improve the imaging quality,and clearly reconstruct underwater objects made of diverse materials.

关 键 词：水下目标探测 偏振成像 多材质目标 MUELLER矩阵 

分 类 号：TJ63[兵器科学与技术—武器系统与运用工程] U674[交通运输工程—船舶及航道工程]