Effects Of Intensity Thresholding On The Power Spectrum Of Laser Speckle

    Authors

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

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    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

    Share

    COinS