Results 21 to 30 of about 112,717 (277)
l0 Sparsity for Image Denoising with Local and Global Priors
Advances in Multimedia, 2015 We propose a l0 sparsity based approach to remove additive white Gaussian noise from a given image. To achieve this goal, we combine the local prior and global prior together to recover the noise-free values of pixels.
Xiaoni Gao +3 more
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Effect of luminance noise on the object frequencies mediating letter identification
Frontiers in Psychology, 2014 Purpose: To determine if the same object frequency information mediates letter contrast threshold in the presence and absence of additive luminance noise (i.e. noise-invariant processing) for letters of different size.
Cierra Michelle Hall +7 more
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IET Control Theory & Applications, 2022 This paper discusses the problem of state estimation for non‐linear stochastic uncertain systems with time‐correlated additive noise and packet dropout compensations.
Guo‐Rui Cheng +3 more
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Image and Texture Independent Deep Learning Noise Estimation Using Multiple Frames
Elektronika ir Elektrotechnika, 2022 In this study, a novel multiple frame based image and texture independent Convolutional Neural Network (CNN) noise estimator is introduced. Noise estimation is a crucial step for denoising algorithms, especially for ones that are called “non-blind”.
Hikmet Kirmizitas, Nurettin Besli
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Bit Error Probability of M-QAM under Impulsive Noise and Fading Modeled by Markov Chains [PDF]
Radioengineering, 2018 This article presents new exact expressions, written in terms of elementary transcendental functions, for calculating the bit error probability of M-ary Quadrature Amplitude Modulation (M-QAM) scheme considering the wireless communication channel modeled
H. S. Silva +4 more
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An optimized initialization for LDPC decoding over GF(q) in impulsive noise environments.
PLoS ONE, 2021 Modern navigation satellite communication has the characteristic of high transmitting rate. To avoid bit errors in data transmission, low density parity check (LDPC) codes are widely recognized as efficient ways for navigation communication ...
Haoqiang Liu +3 more
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ℓp-norms of codewords from capacity- and dispersion-achieveing Gaussian codes [PDF]
, 2012 It is demonstrated that codewords of good codes for the additive white Gaussian noise (AWGN) channel become more and more isotropically distributed (in the sense of evaluating quadratic forms) and resemble white Gaussian noise (in the sense of ℓp norms ...
Polyanskiy, Yury
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Estimation of the drift parameter for the fractional stochastic heat equation via power variation
Modern Stochastics: Theory and Applications, 2019 We define power variation estimators for the drift parameter of the stochastic heat equation with the fractional Laplacian and an additive Gaussian noise which is white in time and white or correlated in space.
Zeina Mahdi Khalil, Ciprian Tudor
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Robust Denoising of Phonocardiogram Signals Using Time-Frequency Analysis and U-Nets
IEEE Access, 2023 Cardiovascular diseases are the cause of many deaths worldwide every day. Automated cardiac auscultation is a promising diagnosis method; however, one of its main disadvantages is that it is prone to receiving too much noise during sound recording, which
Cristobal Gonzalez-Rodriguez +2 more
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On Estimating the Norm of a Gaussian Vector Under Additive White Gaussian Noise
IEEE Signal Processing Letters, 2019 This letter considers the task of estimating the norm of an $n$ -dimensional Gaussian random vector given a noisy/perturbed observation of it. In particular, the focus is on the case of additive Gaussian noise perturbation, which is assumed to be independent of the original vector.
Alex Dytso +2 more
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