PMID: 18195875Mar 15, 1983Paper

Map transformations by optical anamorphic processing

Applied Optics
A W Lohmann, N Streibl

Abstract

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.

Citations

Oct 12, 2000·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·D WangA W Lohmann
Mar 15, 1984·Applied Optics·T SzoplikC Ferreira
Sep 15, 1984·Applied Optics·J Cederquist, A M Tai
Feb 10, 1993·Applied Optics·J TanidaY Ichioka
May 1, 1993·Applied Optics·H J Rabal, G M Bilmes
May 15, 1986·Applied Optics·A W Lohmann

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