Abstract
Phase retrieval problem is the recovering of the lost phase information of an optical field. Usually the directly measurable quantity in an optical system is the intensity of the image or diffractive pattern. Consequently, substantial information available encoded in the phase is lost. In order to reconstruct the image, one needs both the amplitude and phase information. Therefore, it is important to reconstruct the image from the intensity measurements only.1 Various algorithms for the phase retrieval have already been proposed, including the iterative algorithms,2-5 the direct methods,6,7 and so on.8-10
© 1998 Optical Society of America
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