Title

Effects Of Intensity Thresholding On The Power Spectrum Of Laser Speckle

Abstract

Spatial-frequency filtering of laser speckle patterns has proven to be a useful tool in the measurement of MTF 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 MTF testing.

Publication Date

1-1-1993

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

1969

Number of Pages

158-164

Document Type

Article; Proceedings Paper

Identifier

scopus

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.154734

Socpus ID

0027802499 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0027802499

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