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Proceedings Paper

Reduced computation algorithm for phase retrieval
Author(s): Norman R. Guivens; Philip D. Henshaw
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Paper Abstract

Retrieval of the phase of a complex analytic function when only the amplitude is known has application to many real-world problems. For example, phase retrieval has been used in astronomical speckle imaging [1] and is being considered for laser speckle imaging systems.[2,3] In the latter case, the computational requirements may limit the number of images which can be obtained in a given time. This paper describes a modification to the iterative Fourier transform algorithm (IFTA) as described by Fienup [4] which may reduce the computation to reconstruct an image to a given quality by as much as a factor of three.

Paper Details

Date Published: 1 November 1990
PDF: 12 pages
Proc. SPIE 1351, Digital Image Synthesis and Inverse Optics, (1 November 1990); doi: 10.1117/12.23674
Show Author Affiliations
Norman R. Guivens, SPARTA, Inc. (United States)
Philip D. Henshaw, SPARTA, Inc. (United States)


Published in SPIE Proceedings Vol. 1351:
Digital Image Synthesis and Inverse Optics
Arthur F. Gmitro; Paul S. Idell; Ivan J. LaHaie, Editor(s)

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