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Numerical investigation of the uniqueness of phase retrieval

1990
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Optical Society of America. Journal A: Optics, Image Science, and Vision
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Both a new iterative grid-search technique and the iterative Fourier-transform algorithm are used to illuminate the relationships among the ambiguous images nearest a given object, error metric minima, and stagnation points of phase-retrieval algorithms. Analytic expressions for the subspace of ambiguous solutions to the phase-retrieval problem are derived for 2 X 2 and 3 X 2 objects. Monte Carlo digital experiments using a reduced-gradient search of these subspaces are used to estimate the

doi:10.1364/josaa.7.000412
fatcat:chl2gxuc7nb4xnaq4yrf66ty3i