鬼成像的一个收敛判据(英文)  

A criterion for convergence of ghost imaging

作　　者：张明辉[1] 宋志平[1] 

机构地区：[1]安徽大学物理与材料科学学院,安徽合肥230601

出　　处：《量子电子学报》2016年第1期8-19,共12页Chinese Journal of Quantum Electronics

基　　金：Supported by Key Projection Funding of Anhui Education Council;Doctorial Initial Funding of Anhui University~~

摘　　要：鬼成像(或关联成像)的耗时问题是该研究通往应用领域的艰难瓶颈。以杨氏双缝的鬼衍射为例,通过引入一个收敛判据,研究了一系列影响收敛速度的因素以及收敛特征。计算机实验表明,物体的特征尺度与照明光场的横向相干长度是影响成像速度的共同关键因素。作者希望以此引起人们对关联光学实时化问题的关注。此外,给出的数值热光源的产生方法可为鬼成像的变形-主动照明式激光雷达的光源提供驱动。The long time consumption is a bottleneck for the applicability of the ghost imaging （GI）. By introducing a criterion for the convergence of Gi a factor was investigated that impacts on the convergence speed of it. Based on computer experiments, it＇s demonstrated that the object＇s feature size relative to the spatial coherent length of the illuminating light impacts on the necessary number of uncorrelated data being acquired for the correlation computation. It may motivate people to seek ways towards real-time practical applications of GI and its analogues. In addition, the method to simulate the uncorrelated sequence of a complex ensemble for thermal light is valuable in applications where actively controlling the light fields is needed.

关 键 词：图像处理 鬼成像 收敛 收敛速度 

分 类 号：O436[机械工程—光学工程]