Title

Effects Of Intensity Thresholding On The Power Spectrum Of Laser Speckle

Authors

Authors

A. D. Ducharme; G. D. Boreman;D. R. Snyder

Comments

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Abbreviated Journal Title

Appl. Optics

Keywords

CHARGE-COUPLED DEVICES; LASER SPECKLE; MODULATION TRANSFER FUNCTION; POWER SPECTRUM; THRESHOLDING; Optics

Abstract

Spatial-frequency filtering of laser-speckle patterns has proved to be a useful tool in the measurement of the modulation transfer function for focal plane arrays. Intensity thresholding of the laser-speckle patterns offers nearly an order of magnitude savings in digital storage space. The effect of this thresholding on the spatial-frequency power spectral density of the speckle pattern is investigated. An optimum threshold level is found that minimizes distortion of the power spectrum for the classes of speckle data used for modulation transfer function testing.

Journal Title

Applied Optics

Volume

33

Issue/Number

13

Publication Date

1-1-1994

Document Type

Article

Language

English

First Page

2715

Last Page

2720

WOS Identifier

WOS:A1994NJ77100038

ISSN

0003-6935

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