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Quantum Information Processing

Extraction of additional information during quantum ghost imaging and its processing

Dmitriy A. Balakin, Aleksandr V. Belinsky

Published Aug 27, 2020• 8 citations
Publisher
DOI
10.1007/s11128-020-02820-4

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Ghost imaging allows extracting information about an object from the spatial correlation function between the photons that interacted with an object and the photons in the reference arm(s). The reference beam does not interact with the object; however, it is measured by a CCD matrix. The mathematical method of measurement reduction allows using both the mutual correlations of multiplexed ghost images and prior information about how the image of the research object can look in order to improve the quality of the reconstructed image. The information about the object is the sparsity of its transparency distribution under a given transform. Computer modelling of image reconstruction using multiplexed ghost images formed by four-mode entangled quantum light states confirms the efficiency of the proposed algorithm even with a small number of photons that illuminate the research object.