All defocused OTFs in a rectangular coordinate display

Albertina Castro; Jorge Ojeda-Castaneda

doi:10.1117/12.358402

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6 July 1999 All defocused OTFs in a rectangular coordinate display

Albertina Castro, Jorge Ojeda-Castaneda

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Proceedings Volume 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications; (1999) https://doi.org/10.1117/12.358402
Event: 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, 1998, Cartagena de Indias, Colombia

Abstract

We show that by using a binary spatial filter, and a square law detector, all the defocused OTF's are displayed in a single picture. This unique picture has as horizontal coordinate the spatial frequency, and as vertical coordinate the amount of defocus. The gray level variations of the picture are proportional to the values of the out-of-focus MTF.

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Albertina Castro and Jorge Ojeda-Castaneda "All defocused OTFs in a rectangular coordinate display", Proc. SPIE 3572, 3rd Iberoamerican Optics Meeting and 6th Latin American Meeting on Optics, Lasers, and Their Applications, (6 July 1999); https://doi.org/10.1117/12.358402

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