Optical: systems and elements – Diffraction – Using fourier transform spatial filtering
Patent
1997-01-09
2000-12-26
Chang, Audrey
Optical: systems and elements
Diffraction
Using fourier transform spatial filtering
382260, 382263, 382210, 382254, 382255, G02B 2746, G06K 976, G06K 940
Patent
active
061668532
ABSTRACT:
An adaptive structure of a Wiener filter is used to deconvolve three-dimensional wide-field microscope images for the purposes of improving spatial resolution and removing out-of-focus light. The filter is a three-dimensional kernel representing a finite-impulse-response (FIR) structure requiring on the order of one thousand (1000) taps or more to achieve an acceptable mean-square-error. Converging to a solution is done in the spatial-domain and therefore does not experience many of the problems of frequency-domain solutions. Alternatively, a three-dimensional kernel representing an infinite-impulse-response (IIR) structure may be employed. An IIR structure typically requires fewer taps to achieve the same or better performance, resulting in higher resolution images with less noise and faster computations.
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Greenshields Ian R.
Loew Leslie M.
Morgan Frank R.
Sapia Mark A.
Schaff James C.
Chang Audrey
The University Of Connecticut
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