1 October 1999 Digital method for defocus corrections: experimental results
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Optical Engineering, 38(10), (1999). doi:10.1117/1.602215
Abstract
One of the main features of modern cameras is their ability to perform a mechanical autofocus and capture a sharp image. Experimental results for misfocusing corrections by fast and exact numerical postprocessing algorithms are presented. Furthermore, the optical transfer function (OTF) for a defocused circular pupil with an arbitrary diameter is presented. These methods are based on the wave optics and, thus, are more realistic than ray optics based methods.
Ido Raveh, David Mendlovic, Zeev Zalevsky, Adolf W. Lohmann, "Digital method for defocus corrections: experimental results," Optical Engineering 38(10), (1 October 1999). http://dx.doi.org/10.1117/1.602215
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KEYWORDS
Optical transfer functions

Fourier transforms

Charge-coupled devices

Cameras

Image processing

Optical engineering

Bessel functions

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