Results 111 to 120 of about 143,665 (236)

Adaptive compounding speckle-noise-reduction filter for optical coherence tomography images. [PDF]

J Biomed Opt, 2021
Gómez-Valverde JJ, Sinz C, Rank EA, Chen Z, Santos A, Drexler W, Ledesma-Carbayo MJ.   +6 more
europepmc   +1 more source

Speckle reduction in SAR imagery [PDF]

, 1995
Synthetic Aperture Radar (SAR) is a popular tool for airborne and space-borne remote sensing. Inherent to SAR imagery is a type of multiplicative noise known as speckle. There are a number of different approaches which may be taken in order to reduce the
Gebhardt, Mark William Dewdney
core  

SAR Image Registration: The Combination of Nonlinear Diffusion Filtering, Hessian Features and Edge Points

Sensors
Synthetic aperture radar (SAR) image registration is an important process in many applications, such as image stitching and remote sensing surveillance. The registration accuracy is commonly affected by the presence of speckle noise in SAR images.
Guili Tang, Zhonghao Wei, Long Zhuang
doaj   +1 more source

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, P.K. Saranya, R. Manavalan   +2 more
doaj  

Shot-noise detection of ultrasound-tagged photons in ultrasound-modulated optical imaging [PDF]

Optics Letters 28, 24 (2003) 2482, 2008
We propose a new detection method for ultrasound-modulated optical tomography that allows us to perform parallel speckle detection with optimum shot-noise sensitivity, using a CCD camera. Moreover, we show that making use of a spatial filter system allows us to fully filter out speckle decorrelation noise.
arxiv  

Bayesian Framework-Based Adaptive Hybrid Filtering for Speckle Noise Reduction in Ultrasound Images Via Lion Plus FireFly Algorithm. [PDF]

J Digit Imaging, 2021
S L SS, M S.
europepmc   +1 more source

Numerical simulation of speckle noise in laser vibrometry [PDF]

, 2006
Steve Rothberg
openalex   +1 more source

Bispectral reconstruction of speckle-degraded images [PDF]

, 1992
The bispectrum of a signal has useful properties such as being zero for a Gaussian random process, retaining both phase and magnitude information of the Fourier transform of a signal, and being insensitive to linear motion. It has found applications in a
Jin, Song
core   +1 more source

Speckle Noise Algorithm-Based Ultrasound Imaging in Evaluating the Therapeutic Effect of Blood Purification on Children with Kidney Failure and Analysis of Its Correlation with Serum Inflammatory Factor Levels. [PDF]

J Healthc Eng, 2022
Li X, Guo H, Songjin S, Mo N, Chen X.
europepmc   +1 more source

Speckle noise reduction in SAR images using a new morphological filter [PDF]

, 2010
Ahmed S. Mashaly, Ezz Eldin Abdelkawy, Tarek A. Mahmoud   +2 more
openalex   +1 more source