Correspondence imaging based on correlation coefficients |
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Authors: | Xuri Yao;Xuefeng Liu;Wenkai Yu;Guangjie Zhai |
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Institution: | Xuri Yao;Xuefeng Liu;Wenkai Yu;Guangjie Zhai;Key Laboratory of Electronics and Information Technology for Space Systems, Center for Space Science and Applied Research,Chinese Academy of Sciences;University of Chinese Academy of Sciences; |
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Abstract: | In the context of correspondence ghost imaging, we utilize the correlation coefficients to separate the reference detector speckle patterns into positive and negative correlated parts. A positive image and a negative image of the object are obtained by averaging over corresponding speckle patterns. The visibility and contrast-to-noise ratio of the positive image are discussed, and it is found that the latter will reach a maximum by averaging over a little less than half of the total number of reference speckle patterns. |
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