presented that linear and median filters didn't preserve edge of images degraded with speckle
The patent schematics show a laser speckle
interferometric system for a mobile device that includes a laser light source, a detector, processing and memory units, as well as a screen for displaying the data.
noise removal helps in Automatic Target Recognition, which involves detection and classification of SAR image.
pattern is the random intensity distribution.
Reproducibility of non-invasive assessment of skin endothelial function using laser Doppler flowmetry and laser speckle
This means that there is no strict one-to-one correspondence between the speckle
distribution, and the stretching factor statistics.
Using optimised scattering materials, they produce the finest-grained speckles
yet made with visible light.
When the material that is scattering the light is moving-say, in the case of blood flowing through the circulatory system-"the speckle
pattern changes with changes in the flow," explained biomedical engineer Mahsa Nemati, a graduate student in the Optics Research Group at the Delft University of Technology in the Netherlands and the lead author of the Biomedical Optics Express paper on monitoring pulse.
In unclotted blood, these light scattering particles move easily about, making the pattern of scattered light called a speckle
pattern fluctuate rapidly.
 developed a phase shifting speckle
interferometer operated at 1 k Hz capturing rate using a high-speed camera.
These echoes trigger constructive and destructive interferences and generate speckle
patterns in the ultrasound images .
Instead, it is possible to use noncontact and nondestructive method based on the laser speckle
In coherent systems, backscatter signals add to each other coherently, and random interference of electromagnetic signals causes the speckle
tracking echocardiographic evaluation of right ventricular free wall revealed decreased regional longitudinal strain value of -10 (Fig.