恶劣条件下多谱段偏振目视辅助光学成像技术  

Multispectral Polarization Visually Assisted Optical Imaging Technology under Harsh Conditions

作　　者：付强[1] 战俊彤[1] 张肃[1] 段锦[1] 朱京平[2] 黄丽清 史浩东[1] 李英超[1] 姜会林[1,3] Fu Qiang;Zhan Juntong;Zhang Su;Duan Jin;Zhu Jingping;Huang Liqing;Shi Haodong;Li Yingchao;Jiang Huilin(School of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130022,Jilin,China;School of Telecommunication,Xi'an Jiaotong University,Xi'an 710049,Shaanxi,China;School of Optics and Photonics,Beijing Institute of Technology,Beijing 100081,China)

机构地区：[1]长春理工大学空间光电技术研究所,吉林长春130022 [2]西安交通大学电信学院,陕西西安710049 [3]北京理工大学光电学院,北京100081

出　　处：《光学学报》2023年第15期229-244,共16页Acta Optica Sinica

基　　金：国家自然科学基金(62127813,61890963);吉林省教育厅项目(JJKH20220744KJ)。

摘　　要：开展了多谱段信息融合的偏振成像探测方法和技术研究,提出了多谱段偏振成像仪器总体方案;深入分析了目标起偏和传输特性建模与测试、高消光比金属微纳格栅偏振元件的优化、多谱段偏振成像探测系统光学设计、多谱段偏振信息处理等关键技术方案。提出一种新颖的深度网络,通过自学习策略来解决偏振图像融合问题,为研制多谱段偏振成像探测实验样机提供技术支撑,以满足偏振光学成像中目视辅助和引导的实际应用需求。Objective In view of the differences in polarization characteristics caused by different states of the detected targets,different radiation spectra,different sizes and shapes,complex transmission environment of soot and haze,and variable light field interference,we conduct the target multispectral polarization model and polarization characteristic transmission model,develop the optimal design method of micro-nano grating polarizer array,put forward the principle and schemes of high-resolution imaging detection instruments,and propose a novel deep network to solve the polarization image fusion problem through a self-learning strategy.We aim to use multispectral polarization imaging technology to solve the problems of complex optical field interference,limited visible distance,and insufficient classification ability of optical imaging under harsh conditions.Methods In this paper,the polarization imaging detection method and multispectral information fusion technology are studied,and the overall scheme of the multispectral polarization imager is proposed.Scientific methods such as the theory and model of target polarization characteristics under complex optical fields,micro-nano grid focal plane polarization device,optimization and testing of a multispectral fully polarized imaging system,and polarization image processing based on polarization difference characteristics are condensed.Key technologies and solutions such as modeling and testing of target polarization characteristics generation and transmission,optimization of metal micro-nano grating polarization elements with high extinction ratio,the optical design of multispectral polarization imaging and testing system,and multispectral polarization information processing are analyzed.This will lay the foundation for the development of a multispectral polarization imaging detection test prototype,which will meet the practical application requirements of visual assistance and guidance in optical imaging.Results and Discussions We conduct the target multispectral po

关 键 词：成像系统 多谱段偏振 目视辅助 偏振特性 微纳格栅 

分 类 号：O439[机械工程—光学工程]