不同颜色照明下的水下成像差异研究  

Difference between Underwater Imaging with Illumination Sources with Different Colors

作　　者：孙杰[1] 王红萍[1] 张丹[1] 余义德[1] SUN Jie;WANG Hongping;ZHANG Dan;YU Yide(91550th Unit,the People’s Liberation Army of China,Dalian 116023,China)

机构地区：[1]中国人民解放军91550部队,辽宁大连116023

出　　处：《水下无人系统学报》2023年第4期648-653,共6页Journal of Unmanned Undersea Systems

摘　　要：针对低照度、浑浊水质环境中水下成像系统观测能力受限的问题,从辅助照明光源的角度,设计了水池实验方案,分析不同浑浊程度的水质条件下光源光谱特性对水介质散射特性的影响。实测数据分析表明,不同颜色的辅助光照明下,水体的散射系数存在差异,低浓度的水体对蓝光的散射系数较大,蓝光照明的成像效果并不理想,而随着浓度增加,红光的散射系数逐渐接近甚至大于蓝光。研究结果不仅有助于优化水下成像系统中照明光源的参数设置,而且能够为去散射方法的应用,以及获取高质量的水下观测视频提供强有力的技术理论支撑。Since the observation ability of underwater imaging systems is limited in the environment of low illumination and turbid water,the experimental scheme of the pool was designed from the perspective of an auxiliary illumination source.The influence of spectral characteristics of illumination source on scattering characteristics of water medium under different turbidity conditions was analyzed.The analysis of measured data shows that the scattering coefficients of water bodies are different under the auxiliary illumination sources with different colors.The scattering coefficient of blue light is larger in water with low concentration,and the imaging with blue light is not ideal.The scattering coefficient of red light is larger than that of blue light with increasing concentration.The research results not only help to optimize the parameters of illumination sources in underwater imaging systems but also provide strong technical and theoretical support for applying de-scattering methods and obtaining high-quality underwater observation videos.

关 键 词：水下成像 辅助光源 散射特性 

分 类 号：TJ630.34[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]