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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 2, Iss. 5 — May. 1, 1985
  • pp: 635–643

Image construction through diffraction-limited high-contrast imaging systems: an iterative approach

Karen M. Nashold and Bahaa E. A. Saleh  »View Author Affiliations


JOSA A, Vol. 2, Issue 5, pp. 635-643 (1985)
http://dx.doi.org/10.1364/JOSAA.2.000635


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Abstract

It is desired to preprocess an input image so that, when it is distorted by an imaging system, a prescribed output image is produced. The system of interest is a linear, shift-invariant, band-limited system followed by a hard limiter. Such a system is found, for example, in microphotography, when a camera that is band limited by diffraction effects is used to print on very-high-contrast film. In this paper, an iterative solution that employs alternating projections is presented. Two variations of the procedure, which is similar to the Gerchberg–Papoulis algorithm, are applied to several examples having different space–bandwidth products. Also, a method of overrelaxing the projections to improve convergence is studied.

© 1985 Optical Society of America

History
Original Manuscript: July 24, 1984
Manuscript Accepted: January 7, 1985
Published: May 1, 1985

Citation
Karen M. Nashold and Bahaa E. A. Saleh, "Image construction through diffraction-limited high-contrast imaging systems: an iterative approach," J. Opt. Soc. Am. A 2, 635-643 (1985)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-2-5-635

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