光场的统计分布性质对鬼成像成像质量的研究  

Study on Ghost Imaging by Statistical Distribution Properties of Different Light Fields

作　　者：钟雪莹 王晓茜[1] 高超 姚治海[1] ZHONG Xueying;WANG Xiaoqian;GAO Chao;YAO Zhihai(School of Physics,Changchun University of Science and Technology,Changchun 130022)

机构地区：[1]长春理工大学物理学院,长春130022

出　　处：《长春理工大学学报(自然科学版)》2025年第1期37-46,共10页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：吉林省自然科学基金(YDZJ202101ZYTS030)。

摘　　要：鬼成像在探测方面应用前景非常广泛,具有超分辨率的重要性能,对于鬼成像成像质量的实际应用具有深远影响。在鬼成像系统中,光源的统计性质是影响鬼成像成像质量的重要因素。不同光场统计性质分布对成像质量的分辨率有不同的影响。通过理论分析热光光场性质,进一步理论分析高斯型光场、洛伦兹型光场和均匀光场概率密度函数和相干函数,构建洛伦兹分布、均匀分布和高斯型统计分布的统计分布模型,并运用数值模拟方法,验证了光场的统计性质分布对成像质量产生影响。运用均方误差和峰值信噪比作为评价成像质量的指标,发现洛伦兹型光场、均匀型光场的统计分布在均方误差和峰值信噪比两方面的数值,显著高于高斯型统计分布光场。因此,通过调节光场的统计分布,可以有效提高鬼成像的成像质量。Ghost imaging has a wide application prospect in detection,has an important performance of super resolution,and has a profound impact on the practical application of ghost imaging quality.In the ghost imaging system,the statistical property of the light source is an important factors affecting the imaging quality.The distribution of statistical properties of different light fields has different effects on the resolution of imaging quality.In this paper,the properties of thermal light field are analyzed theoretically,and the probability density functions and coherence functions of Gaussian,Lorentz and uniform light fields are further analyzed theoretically.The statistical distribution models of Lorentz distribution,uniform distribution and Gaussian distribution are constructed,and the effect of statistical property distribution on imaging quality is verified by numerical simulation method.Mean square error and peak signal-to-noise ratio were used to evaluate the imaging quality.It is found that the mean square error and peak signal-to-noise ratio of Lorentz-type optical field and uniform optical field are significantly higher than those of Gaussian optical field.Therefore,the imaging quality of ghost imaging can be effectively improved by adjusting the statistical distribution of light field.

关 键 词：鬼成像 统计分布 相干函数 成像质量 

分 类 号：O438[机械工程—光学工程]