Abstract

A method suggested earlier for the restoration of speckle images from the average phase of the spectrum is described and investigated in detail. Much attention is concentrated on the reconstruction ambiguity that arises because of inexact knowledge of the spectrum phase, uncertainty about the position and the size of the object, and the probable presence of symmetric factors in the spectrum. Several algorithms that permit unambiguous object image reconstruction (to within arbitrary symmetric factors) have been developed. Results of model calculations for simple one- and two-dimensional images are given.

© 1984 Optical Society of America

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