Appeal No. 1998-0818
Application No. 08/319,143
(c) providing said phase encoded filter at
said Fourier transform plane;
(d) approximating the amplitude portion of
the reciprocal Fourier transform of the
distortion function with an amplitude encoded
filter having a transmittance function which is
statistically similar to the reciprocal spatial
frequency spectrum of the Fourier transform of
the distortion function;
(e) providing said amplitude encoded filter
at said Fourier transform plane to produce an
intermediate signal at the Fourier transform
plane; and
(f) Fourier transforming said intermediate
signal in order to recover the optical image
having a substantially reduced degree of
distortion.
13. A pseudo deconvolving apparatus for
recovering an optical image, which has been
distorted by its convolution with a distortion
function, by the convolution of the Fourier
transformed distorted image with a filter
approximating the reciprocal of the Fourier
transformed distortion function comprising:
(a) means for producing a Fourier transform
of a wavefront distorted optical image at a
Fourier transform plane;
(b) computer means for approximating the
exact phase portion of the reciprocal Fourier
transform of the distortion function with a non-
continuous phase encoded filter and for
providing said non-continous phase encoded
filter at said Fourier transform plane;
(c) computer means for approximating the
amplitude portion of the reciprocal Fourier
transform of the distortion function with an
amplitude encoded filter having a transmittance
function which is statistically similar to the
reciprocal spatial frequency spectrum of the
Fourier transform of the distortion function and
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