Pseudo deconvolution method of recovering a distorted optical image
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United States of America Patent
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-
May 8, 2001
Grant Date -
N/A
app pub date -
Oct 4, 1994
filing date -
Oct 4, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A first lens produces a Fourier transform of the wavefront distorted optical image at the Fourier transform plane. A phase encoded filter is positioned at the transform plane and a second filter is tandemly positioned with respect to the first filter, the second filter having a transmittance which is statistically similar to the reciprocal spatial frequency spectrum of the Fourier transform of the distortion function, to in turn produce an intermediate signal at the transform plane, which is now Fourier transformed by a second lens to recover the optical image having a substantially reduced degree of distortion.
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