Map transformations by optical anamorphic processing
- 15 March 1983
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 22 (6), 780-783
- https://doi.org/10.1364/ao.22.000780
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.This publication has 5 references indexed in Scilit:
- Optical compensation of geometrical distortion by a deformable mirrorOptics Communications, 1982
- V Deformation Invariant, Space-Variant Optical Pattern RecognitionPublished by Elsevier ,1978
- Modele de synthese non-lineaire pour le traitement optique des ecrituresOptics Communications, 1974
- Geometrical transformations in optics*Journal of the Optical Society of America, 1974
- Space-variant image restoration by coordinate transformations*Journal of the Optical Society of America, 1974