Results 1 to 10 of about 1,492,218 (202)

An Improved Spectral Subtraction Method for Eliminating Additive Noise in Condition Monitoring System Using Fiber Bragg Grating Sensors [PDF]

open access: yesSensors
The additive noise in the condition monitoring system using fiber Bragg grating (FBG) sensors, including white Gaussian noise and multifrequency interference, has a significantly negative influence on the fault diagnosis of rotating machinery.
Qi Liu   +3 more
doaj   +2 more sources

An Adaptive Estimation Method for Heterogeneous Group Targets with Uncertain Multiplicative and Additive Noises [PDF]

open access: yesSensors
In this paper, an adaptive estimation algorithm for heterogeneous group targets considering uncertain multiplicative and additive noises is proposed. Firstly, a state-space model for heterogeneous group targets with composite multiplicative and additive ...
Zhongkai Liu   +4 more
doaj   +2 more sources

Source Cell-Phone Identification in the Presence of Additive Noise from CQT Domain

open access: yesInformation, 2018
With the widespread availability of cell-phone recording devices, source cell-phone identification has become a hot topic in multimedia forensics. At present, the research on the source cell-phone identification in clean conditions has achieved good ...
Tianyun Qin   +3 more
doaj   +3 more sources

The porosity of additive noise sequences [PDF]

open access: yes2012 IEEE International Symposium on Information Theory Proceedings, 2012
Consider a binary additive noise channel with noiseless feedback. When the noise is a stationary and ergodic process $\mathbf{Z}$, the capacity is $1-\mathbb{H}(\mathbf{Z})$ ($\mathbb{H}(\cdot)$ denoting the entropy rate). It is shown analogously that when the noise is a deterministic sequence $z^\infty$, the capacity under finite-state encoding and ...
Vinith Misra, Tsachy Weissman
openaire   +3 more sources

An Additive Approximation to Multiplicative Noise [PDF]

open access: yesJournal of Mathematical Imaging and Vision, 2020
Multiplicative noise models are often used instead of additive noise models in cases in which the noise variance depends on the state. Furthermore, when Poisson distributions with relatively small counts are approximated with normal distributions, multiplicative noise approximations are straightforward to implement. There are a number of limitations in
Ruanui Nicholson, Jari P. Kaipio
openaire   +2 more sources

Skeleting of Low-Contrast Noisy Halftone Images

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2023
The problem of forming the skeletons of halftone images with two-mode brightness histograms under conditions of changing contrast and noise is considered. On such histograms, one mode corresponds to the objects, and the other to the background. Thanks to
Ma Jun   +2 more
doaj   +1 more source

Bautin bifurcation with additive noise

open access: yesAdvances in Nonlinear Analysis, 2022
In this paper, we consider stochastic dynamics of a two-dimensional stochastic differential equation with additive noise. When the strength of the noise is zero, this equation undergoes a Bautin bifurcation.
Tang Diandian, Ren Jingli
doaj   +1 more source

Analysis on Noisy Boltzmann Machines and Noisy Restricted Boltzmann Machines

open access: yesIEEE Access, 2021
The Boltzmann machine (BM) and restricted Boltzmann machine (RBM) models are representative stochastic neural networks, in which neuron states are determined by stochastic activation functions. They are widely used in many applications.
Wenhao Lu, Chi-Sing Leung, John Sum
doaj   +1 more source

Quantifying Information Content in Multispectral Remote-Sensing Images Based on Image Transforms and Geostatistical Modelling

open access: yesRemote Sensing, 2020
Quantifying information content in remote-sensing images is fundamental for information-theoretic characterization of remote sensing information processes, with the images being usually information sources.
Ying Zhang   +2 more
doaj   +1 more source

The family of random attractors for nonautonomous stochastic higher-order Kirchhoff equations with variable coefficients

open access: yesOpen Mathematics, 2022
In this paper, the stochastic asymptotic behavior of the nonautonomous stochastic higher-order Kirchhoff equation with variable coefficients is studied.
Lv Penghui, Lin Guoguang, Sun Yuting
doaj   +1 more source

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