Optical polarization imaging for underwater target detection with non-scatter background  

基于无散射参照偏振成像技术的水下目标光学检测

作　　者：GUAN Jin-ge ZHAO Yong ZHENG Yong-qiu MA Miao SUN Peng XUE Chen-yang 管今哥;赵勇;郑永秋;马淼;孙鹏;薛晨阳(中北大学信息与通信工程学院,山西太原030051;中国兵器工业计算机应用技术研究所,北京100089;中北大学仪器科学与动态测试教育部重点实验室,山西太原030051;太原工业学院理学系,山西太原030008)

机构地区：[1]School of Information and Communication Engineering,North University of China,Taiyuan 030051,China [2]Beijing Institute of Computer Application Technology,China North Industries Group Corporation Limited,Beijing 100089,China [3]Key Laboratory of Instrumentation Science and Dynamic Measurement(North University of China),Ministry of Education,Taiyuan 030051,China [4]Department of Science,Taiyuan Institute of Technology,Taiyuan 030008,China

出　　处：《Journal of Measurement Science and Instrumentation》2020年第4期335-342,共8页测试科学与仪器（英文版）

基　　金：National Natural Science Foundation of China(Nos.11847069,11847127);Science Foundation of North University of China(No.XJJ20180030)。

摘　　要：For conventional optical polarization imaging of underwater target,the polarization degree of backscatter should be pre-measured by averaging the pixel intensities in the no target region of the polarization images,and the polarization property of the target is assumed to be completely depolarized.When the scattering background is unseen in the field of view or the target is polarized,conventional method is helpless in detecting the target.An improvement is to use lots of co-polarization and cross polarization detection components.We propose a polarization subtraction method to estimate depolarization property of the scattering noise and target signal.And experiment in a quartz cuvette container is performed to demonstrate the effectiveness of the proposed method.The results show that the proposed method can work without scattering background reference,and further recover the target along with smooth surface for polarization preserving response.This study promotes the development of optical polarization imaging systems in underwater environments.

关 键 词：polarization imaging underwater optical scattering optical information processing target detection 

分 类 号：O43[机械工程—光学工程]