中国光学（中英文）2024，Vol.17Issue(5)：1075-1086,12.DOI:10.37188/CO.2023-0151
强光背景下主动偏振成像方法
Active polarization imaging method under strong light background
摘要
Abstract
In this study,we propose an active polarization imaging method based on laser illumination to tackle the issue of low target detection contrast in strong light backgrounds,which is a challenge in conven-tional photoelectric detection.Through constructing a laser incident bidirectional reflection distribution mod-el,a laser incident polarization bidirectional reflection distribution model and a target surface polarization model of laser illumination,the coupling relationship between the polarization characteristics of three typical target materials and the divergence angle of a laser beam is analyzed.Backlight observation experiments are conducted in a controlled darkroom to verify the impact of the scattering angle of the laser beam on the polar-ization characteristics of the target.The experimental results show an 86.11%increase in target contrast for active polarization imaging under strong light background compared to traditional passive intensity imaging.Additionally,the visible polarization characteristics of different target materials vary with different diver-gence angles,and the line polarization of metallic materials is higher than that of non-metallic materials.The experimental results are in good agreement with the theoretical analysis.The outdoor solar backlight observa-tion experiment verifies the applicability of the research method in high-intensity light and long-distance set-tings.This study can lay a theoretical foundation for improving accurate target perception under a strong light background.关键词
激光束散角/强背景光/可见光偏振特性/偏振双向反射分布函数/偏振度Key words
laser beam divergence angle/strong background light/visible light polarization/polarization bid-irectional reflection distribution function/degree of polarization分类
数理科学引用本文复制引用
史浩东,许家伟,张健,吴洪波,王超,刘壮,战俊彤,李英超,付强..强光背景下主动偏振成像方法[J].中国光学（中英文）,2024,17(5):1075-1086,12.基金项目
吉林省科技发展计划项目(No.YDZJ202301ZYTS417) Supported by the Jilin Scientific and Technological Development Program(No.YDZJ202301ZYTS417) （No.YDZJ202301ZYTS417）
