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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 23, Iss. 13 — Jul. 1, 1998
  • pp: 1049–1051

Simultaneous Cartesian coordinate display of defocused optical transfer functions

J. Ojeda-Castañeda and Albertina Castro  »View Author Affiliations


Optics Letters, Vol. 23, Issue 13, pp. 1049-1051 (1998)
http://dx.doi.org/10.1364/OL.23.001049


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Abstract

We show that by using a binary spatial filter and a square-law detector we can display all the defocused optical transfer functions (OTF's) in a given study in a single picture. The resulting unique picture has as its horizontal coordinates the spatial frequency and as its vertical coordinates the amount of defocus. The gray-level variations are proportional to the modulus of the OTF, that is, the modulation transfer function. Numerical simulations are included.

© 1998 1998 Optical Society of America

OCIS Codes
(100.1390) Image processing : Binary phase-only filters
(110.4100) Imaging systems : Modulation transfer function
(330.6110) Vision, color, and visual optics : Spatial filtering

Citation
J. Ojeda-Castañeda and Albertina Castro, "Simultaneous Cartesian coordinate display of defocused optical transfer functions," Opt. Lett. 23, 1049-1051 (1998)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-23-13-1049

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