Map transformations by optical anamorphic processing
Applied Optics, Vol. 22, Issue 6, pp. 780-783 (1983)
http://dx.doi.org/10.1364/AO.22.000780
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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.
© 1983 Optical Society of America
Citation
A. W. Lohmann and N. Streibl, "Map transformations by optical anamorphic processing," Appl. Opt. 22, 780-783 (1983)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-22-6-780
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