speckle


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Related to speckle: Speckle interferometry

speckle

(spĕk′əl)
n.
A speck or small spot, as a natural dot of color on skin, plumage, or foliage.

speck′le v.

speckle

A grainy distortion (a kind of “noise”) in an ultrasonographic image.
References in periodicals archive ?
In this paper examined about the speckle noise model, the proposed NDWT algorithm for speckle suppression in SAR imagery and results and discussion of proposed methodology.
We have shown above that the problem of finding speckle intensity distribution for wave propagation in inhomogeneous media can be mapped to the problem of mixing in incompressible flows.
Timing and magnitude of regional right ventricular function: a speckle tracking-derived strain study of normal subjects and patients with right ventricular dysfunction.
Speckle noise affects all inherent characteristics of coherent imaging, including medical ultra sound imaging.
The light scattered on the light source unit and screen that serves as the irradiated surface interferes with each other, and is prone to generate speckle noise, which appears as a fine mottled splashing, which is in turn the cause of scintillation.
An appropriate method for speckle reduction is one which enhances the signal to noise ratio while conserving the edges and lines in the image.
Several authors [7,8] have discussed various aspects of laser-based systems in general, considering holographic [9] and moire [4] methods, laser-interferometry [10] and laser speckle interferometry [4,9] and have shown that most of them are more sensitive to the above-mentioned rigid body displacements than the laser speckle shift method, discussed in this paper.
Keywords: Dynamic speckle techniques, drying of spray paints
This random interference is known as a speckle pattern.
Together they turned to speckle imaging, because of its ability to construct a statistically significant picture, as a new way to improve the diagnosis of malaria.
Tenders are invited for Laser Speckle Imager (UW-MAD) (17-0004)
Most of the existing image have a any one of the specific noise like Salt and pepper, Gaussian, Poisson and speckle noise However, the kind and intensity of the noise generated by digital cameras cannot be predicted since it depends on the aperture, speed of shutter, flash on /off and brand of camera.