Results 21 to 30 of about 115,523 (316)

A Fractional-Order Telegraph Diffusion Model for Restoring Texture Images with Multiplicative Noise

open access: yesFractal and Fractional, 2023
Multiplicative noise removal from texture images poses a significant challenge. Different from the diffusion equation-based filter, we consider the telegraph diffusion equation-based model, which can effectively preserve fine structures and edges for ...
Xiangyu Bai   +5 more
doaj   +1 more source

Multiplicative noise induces zero critical frequency [PDF]

open access: yesPhysical Review E, 2009
Stochastic Bloch equations which model the fluorescence of two-level molecules and atoms, NMR experiments, and Josephson junctions are investigated to illustrate the profound effect of multiplicative noise on the critical frequency of a dynamical system. Using exact solutions and the cumulant expansion we find two main effects: (i) even very weak noise
Y, Peleg, E, Barkai
openaire   +2 more sources

Multiplicative Noise Removal via a Novel Variational Model

open access: yesEURASIP Journal on Image and Video Processing, 2010
Multiplicative noise appears in various image processing applications, such as synthetic aperture radar, ultrasound imaging, single particle emission-computed tomography, and positron emission tomography.
Li-Li Huang, Liang Xiao, Zhi-Hui Wei
doaj   +2 more sources

Noise influence on recurrent neural network with nonlinear neurons [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2023
The purpose of this study is to establish the features of noise propagation and accumulation in a recurrent neural network using a simplified echo network as an example.
Moskvitin, Viktor Максимович   +1 more
doaj   +1 more source

Conditional probabilities in multiplicative noise processes [PDF]

open access: yesPhysical Review E, 2019
12 pages, 4 figures.
Moreno, Miguel V.   +2 more
openaire   +3 more sources

Multiplicative noise in Euclidean Schwarzschild manifold [PDF]

open access: yesClassical and Quantum Gravity, 2020
We discuss a $ ^{4}+ ^{6}$ scalar field model defined in the Euclidean section of the Schwarzschild solution of the Einstein equations in the presence of multiplicative noise. The multiplicative random noise is a model for fluctuations of the Hawking temperature.
M S Soares, N F Svaiter, C A D Zarro
openaire   +3 more sources

A Convex Variational Approach for Image Deblurring With Multiplicative Structured Noise

open access: yesIEEE Access, 2020
The restoration of images corrupted by blurring and structured noise has attracted growing attention in the domains of image processing and computer vision. However, many works only focus on the restoration of the images degraded by blurring and additive
Tingting Wu   +3 more
doaj   +1 more source

On superstatistical multiplicative-noise processes [PDF]

open access: yes, 2008
In this manuscript we analyse the long-term probability density function of non-stationary dynamical processes which are enclosed inward the Feller class of processes with time varying exponents for multiplicative noise.
Queiros, Silvio M. Duarte
core   +1 more source

Research of multiplicative noise reduction method for acoustic emission signal

open access: yesGong-kuang zidonghua, 2014
Based on the features of acoustic emission signal, the paper researched noise reduction methods of adaptive filters and wavelet decomposition fit acoustic emission signal with multiplicative noise. It compared simulation results of noise reduction of the
MA Xiaoli   +3 more
doaj   +1 more source

Control for Multiplicative Noise Systems With Intermittent Noise and Input Delay

open access: yesIEEE Access, 2020
In this paper, we consider the control problem for multiplicative noise system with intermittent noise and input delay. For the finite-horizon case, in virtue of the dynamic programming approach, the optimal output feedback controller is proposed for the
Qingyuan Qi   +3 more
doaj   +1 more source

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