Results 101 to 110 of about 143,665 (236)
Self-supervised speckle noise reduction of optical coherence tomography without clean data. [PDF]
Biomed Opt Express, 2022 Li Y, Fan Y, Liao H.
europepmc +1 more source
Speckle Noise Removal Model Based on Diffusion Equation and Convolutional Neural Network. [PDF]
Comput Intell Neurosci, 2022 Nao S, Wang Y.
europepmc +1 more source
Modified Fuzzy-Anisotropic Gaussian Kernel and CRB in Denoising SAR Image [PDF]
, 2015 Radar speckle noise is often modeled as multiplicative noise for such that higher the intensity higher the speckle noise. As a result, the brighter pixel values are having more noise.
Pavan, Sandula
core
FETAL ULTRASOUND IMAGE DENOISING USING CURVELET TRANSFORM [PDF]
ICTACT Journal on Image and Video Processing, 2015 The random speckle noise in the acquired fetal ultrasound images is caused by the interference of reflected ultrasound wave fronts. The presence of speckle noise will degrade the quality of the image and even hide image details, which in turn affect the ...
J. Nithya, M. Madheswaran
doaj
Texture Based Quality Analysis of Simulated Synthetic Ultrasound Images Using Local Binary Patterns
Journal of Imaging, 2017 Speckle noise reduction is an important area of research in the field of ultrasound image processing. Several algorithms for speckle noise characterization and analysis have been recently proposed in the area.
Prerna Singh +2 more
doaj +1 more source
Robust SAR Image Despeckling by Deep Learning From Near-Real Datasets
IEEE Journal of Selected Topics in Applied Earth Observations and Remote SensingThe inherent speckle in synthetic aperture radar (SAR) images significantly affects their potential usefulness, and its effective suppression is a challenging and nontrivial task.
Jianjun Guan +4 more
doaj +1 more source
Speckle reduction in ocular wave-front sensing [PDF]
arXiv, 2007 An acousto-optic cell was used to reduce the speckle noise that reduces the quality of Hartmann-Shack and other wave-front sensors measuring ocular aberrations. In the method presented here, a laser beam traverses an acousto-optic cell, interacting with standing acoustic waves.
arxiv
Simulation study of ultrasound-modulated optical tomography [PDF]
, 2001 Monte-Carlo modeling technique was used to simulate the ultrasound-modulated optical tomography. The difference between absorption and scattering objects was compared.
Wang, Lihong V., Yao, Gang
core
Faint Companion Detection Using Noise Removal with Speckle Interferometry [PDF]
, 2003 David W. Tyler
openalex +1 more source
Tailoring PDC speckle structure [PDF]
Journal of Modern Optics, 56 (2009)201, 2008 Speckle structure of parametric down conversion light has recently received a large attention due to relevance in view of applications to quantum imaging The possibility of tailoring the speckle size by acting on the pump properties is an interesting tool for the applications to quantum imaging and in particular to the detection of weak object under ...
arxiv