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Applied Optics

Applied Optics


  • Vol. 22, Iss. 6 — Mar. 15, 1983
  • pp: 780–783

Map transformations by optical anamorphic processing

A. W. Lohmann and N. Streibl  »View Author Affiliations

Applied Optics, Vol. 22, Issue 6, pp. 780-783 (1983)

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A map transformation is a willful geometrical distortion of an image. Examples are rotation, shearing, and local stretching of the coordinate system. We describe an optical setup that performs a map transformation by spatial filtering with two phase-only filters. The system is able to perform in x- and y-linear distortions (e.g., shears) as well as certain x- and y-nonlinear distortions. The distorting filters introduce no aberrations. The object may radiate coherently, incoherently, or partially coherently. Some experimental results are presented.

© 1983 Optical Society of America

Original Manuscript: August 5, 1982
Published: March 15, 1983

A. W. Lohmann and N. Streibl, "Map transformations by optical anamorphic processing," Appl. Opt. 22, 780-783 (1983)

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  1. J. Duvernoy, Opt. Commun. 11, 373 (1974). [CrossRef]
  2. A. Sawchuk, J. Opt. Soc. Am. 64, 138 (1974). [CrossRef]
  3. D. Casasent, D. Psaltis, Prog. Opt. 16, 289 (1978). [CrossRef]
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