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Proceedings Paper

Phase Retrieval
Author(s): Robert A. Gonsalves
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Paper Abstract

Phase retrieval implies extraction of the unknown phase of a complex signal from modulus data. It has been proposed for use in a variety of applications, including wavefront sensing, electron microscopy, signal design, and reconstruction of atmospherically degraded images. Solutions to the problem involve measuring the modulus in one or two conjugate domains; using an apodized aperture; using several, slightly defocused images; and forming an estimate of the signal's power spectrum based on multiple, degraded measurements. In this review paper we define the problem, show how phase retrieval can be used in some of the areas mentioned above, outline various solutions that have been proposed, give several examples, and present a fairly extensive bibliography on the subject.

Paper Details

Date Published: 22 July 1985
PDF: 14 pages
Proc. SPIE 0528, Digital Image Processing, (22 July 1985); doi: 10.1117/12.946420
Show Author Affiliations
Robert A. Gonsalves, EIKONIX Corporation and Northeastern University (United States)

Published in SPIE Proceedings Vol. 0528:
Digital Image Processing
Andrew G. Tescher, Editor(s)

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