Optimization of computational ghost imaging

被引:25
作者
Gao, Chao [1 ]
Wang, Xiaoqian [1 ]
Wang, Zhifeng [1 ]
Li, Zhe [2 ]
Du, Guijiao [1 ]
Chang, Feng [1 ]
Yao, Zhihai [1 ]
机构
[1] Changchun Univ Sci & Technol, Dept Phys, Changchun 130022, Jilin, Peoples R China
[2] Changchun Univ Sci & Technol, Dept Appl Math, Changchun 130022, Jilin, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1103/PhysRevA.96.023838
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We studied the second-order correlation function of computational ghost imaging, and we gave the expressions of second-order correlation function in the signal and background region. We found the total intensity of the modulated source influences the visibility of the reconstructed image. We discussed the positive-negative correlation phenomenon in a computational ghost imaging (CGI) system, and a protocol was given to distinguish the positive and negative correlations. This protocol allows us to determine the dividing line of positive and negative correlations before sampling, and it was verified by our simulations and experiments; the imaging quality of computational ghost imaging can be greatly improved by using this protocol.
引用
收藏
页数:6
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