Results 71 to 80 of about 101,239 (169)
Penapisan Derau Gaussian, Speckle dan Salt&Pepper Pada Citra Warna
IJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2011 Quality of digital image can decrease becouse some noises. Noise can come from lower quality of image recorder, disturb when transmission data process and weather. Noise filtering can make image better becouse will filtering that noise from the image and
Ika Purwanti Ningrum +2 more
doaj +1 more source
Semiconductor Physics, Quantum Electronics & Optoelectronics, 2018 Presented in this paper is the technique of formation of required laser intensity distribution on the target with a reduced speckle noise. The method is based on the use of modified Fourier hologram adapted to controlled phase modulators.
A.G. Derzhypolskyi +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-modulating optical coherence tomography in living mice and humans
Nature Communications, 2017 Optical coherence tomography, a technique that can image inside tissue, is susceptible to speckle noise that limits its diagnostic potential. Here, Libaet al.
Orly Liba +7 more
doaj +1 more source
Anisotropic Diffusion Based Multiplicative Speckle Noise Removal
Sensors, 2019 Multiplicative speckle noise removal is a challenging task in image processing. Motivated by the performance of anisotropic diffusion in additive noise removal and the structure of the standard deviation of a compressed speckle noisy image, we address ...
Mei Gao +4 more
doaj +1 more source
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
Signal-to-noise ratio of the bispectral analysis of speckle interferometry [PDF]
, 1988 Tadashi Nakajima
openalex +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
M2 FILTER FOR SPECKLE NOISE SUPPRESSION IN BREAST ULTRASOUND IMAGES [PDF]
ICTACT Journal on Image and Video Processing, 2016 Breast cancer, commonly found in women is a serious life threatening disease due to its invasive nature. Ultrasound (US) imaging method plays an effective role in screening early detection and diagnosis of Breast cancer.
E.S. Samundeeswari +2 more
doaj
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