Title

Effects Of Intensity Thresholding On The Power Spectrum Of Laser Speckle

Keywords

Charge-coupled devices; Laser speckle; Modulation transfer function; Power spectrum; Thresholding

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. © 1994 Optical Society of America.

Publication Date

1-1-1994

Publication Title

Applied Optics

Volume

33

Issue

13

Number of Pages

2715-2720

Document Type

Article

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/AO.33.002715

Socpus ID

0028441437 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0028441437

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