Journal ArticleDOI
Effect of surface roughness on the statistical distribution of image speckle intensity
Hitoshi Fujii,T. Asakura +1 more
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TLDR
In this article, an experimental investigation is made of the effect of surface roughness on the statistical distribution of image speckle intensity, which is formed by spatially coherent light at the image plane of an object having some roughness and its statistical properties are investigated.About:
This article is published in Optics Communications.The article was published on 1974-05-01. It has received 133 citations till now. The article focuses on the topics: Surface roughness & Speckle pattern.read more
Citations
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Journal ArticleDOI
Statistics of Speckle in Ultrasound B-Scans
TL;DR: In this article, the authors derived autocorrelation functions and power spectra derived from B-scans of a scattering phantom containing many scatterers per resolution cell, leading naturally to the definition of the average speckle spot or cell sue, and this inturn is comparable to the resolution cell.
Book ChapterDOI
Statistical Properties of Laser Speckle Patterns
TL;DR: In this article, the first-order statistics of the complex amplitude, intensity and phase of speckle are derived for a free-space propagation geometry and for an imaging geometry.
Journal ArticleDOI
Optical surface roughness determination using speckle correlation technique.
D. Léger,E. Mathieu,J. C. Perrin +2 more
TL;DR: Two speckle patterns produced from the same rough surface by two different illuminations are correlated and the theoretical calculations have been performed for a normally distributed surface, in good agreement with theory.
Journal ArticleDOI
Very efficient speckle contrast reduction realized by moving diffuser device
Shigeo Kubota,Joseph W. Goodman +1 more
TL;DR: Very efficient speckle contrast reduction is measured by temporal averaging using a moving diffuser on a tuning fork, which vibrates at 100 Hz over 60 microm in amplitude, a distance that is three times the surface roughness correlation length of the diffuser.
References
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Journal ArticleDOI
Some effects of target-induced scintillation on optical radar performance
TL;DR: In this paper, the statistical performance of pulsed optical radars that use energy detection is considered, and the physical factors influencing the number of observed correlation cells for the cases of partial and total interception of the transmitted beam are examined.
Journal ArticleDOI
Some Statistical Properties of Random Speckle Patterns in Coherent and Partially Coherent Illumination
TL;DR: The power spectrum of the intensity fluctuations in a random speckle pattern is derived in a simplified manner for coherent illumination in this article, and the effect of the power spectrum on the measured signal-to-noise ratio is discussed.
Journal ArticleDOI
Surface Roughness Measurement Using White Light Speckle
TL;DR: Implementation techniques are discussed and results shown that indicate good correlation with profilometer measurements for a wide range of roughness values produced with a variety of finishing procedures.
Journal ArticleDOI
Measurement of Spatial Coherence Using Speckle Patterns
TL;DR: In this paper, a method for measuring the spatial coherence of light by means of speckle patterns produced by using ground glass as a random inhomogeneous medium is described, and its verification is performed experimentally by using a laser and a mercury lamp as light sources.