Ghost Imaging without Beamsplitter in Thermal Optical Field

Coherent Ghost Imaging based on sparsity constraint without phase-sensitive detection

“…-Ghost Imaging (GI) is a novel and promising technique that can reconstruct the object's realspace image or its Fourier-transform diffraction spectrum based on the classical or quantum correlation of the light field fluctuations [1,2]. GI has benefited lots of practical applications with its particular scheme advantages [3][4][5][6]. However, the traditional GI process of calculating the correlation is little efficient, and massive measurements are required for good visibility.…”

“…Since the random conjectured phases make the N 2 − N mutual-interference terms easily counteracted during the summation in eq. (6), the N known intensities play dominant roles over the N 2 − N mutual-interference ones. This means that it is not necessary to conjecture all the N 2 − N phases, conjecturing only part of them will be enough.…”