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Iterative ghost imaging
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DOI：10.1364/OL.39.005150.png)
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The recovered image in ghost imaging (GI) contains an error term when the number of measurements M is limited. By iteratively calculating the high-order error term, the iterative ghost imaging (IGI) approach reconstructs a better image, compared to one recovered using a traditional GI approach, without adding complexity. We first propose an experimental scheme, for which IGI can be realized, namely the narrowed point spread function and exponentially increased signal-to-noise ratio (SNR) are realized. The exponentially increasing SNR when implementing IGI results from the replacement of M with M-k. Thus, a perfect recovery of the unknown object is demonstrated with M slightly bigger than the number of speckles in a typical light field. Based on our theoretical framework from the angle of high-order correlation R-k, the two critical behaviors of the iterative coefficients a and the measurements M are derived and well explained. (C) 2014 Optical Society of America
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3.3
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4.0W
被引数:
7.6W
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