Articles with "noise estimation" as a keyword



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Domain Adaptive Denoising Network for Low-Dose CT via Noise Estimation and Transfer Learning.

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Published in 2022 at "Medical physics"

DOI: 10.1002/mp.15952

Abstract: BACKGROUND In recent years, low-dose computed tomography (LDCT) has played an important role in the diagnosis CT to reduce the potential adverse effects of x-ray radiation on patients, while maintaining the same diagnostic image quality.… read more here.

Keywords: network; noise; noise estimation; network model ... See more keywords
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Multilevel Monte Carlo for noise estimation in stochastic multiscale systems

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Published in 2018 at "Chemical Engineering Research and Design"

DOI: 10.1016/j.cherd.2018.10.006

Abstract: Abstract The purpose of this study is to adapt Multilevel Monte Carlo (MLMC) sampling technique for random noise estimation in stochastic multiscale systems and evaluate the performance of this method. The system under consideration was… read more here.

Keywords: noise estimation; monte carlo; stochastic multiscale; estimation stochastic ... See more keywords
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Enhanced residual noise estimation of low rank approximation for image denoising

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Published in 2018 at "Neurocomputing"

DOI: 10.1016/j.neucom.2018.02.063

Abstract: Abstract Recently, the application of rank minimization to image denoising has shown remarkable denoising results. However, due to iterative nature of low rank optimization, the estimation of noise for next iteration is an essential requirement… read more here.

Keywords: noise estimation; image; residual noise; noise ... See more keywords
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Blind noise estimation and denoising filter for recovery of microquake signals

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Published in 2019 at "Exploration Geophysics"

DOI: 10.1080/08123985.2019.1624479

Abstract: ABSTRACT In this study, a data-driven linear filtering method is proposed to recover microseismic signals from noisy data/observations. The proposed method is based on the statistics of the background noise and the observation, which are… read more here.

Keywords: noise estimation; microquake; method; proposed method ... See more keywords
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Insight on the utilization of the noise estimation techniques in phase aware modified multiband spectral subtraction

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Published in 2019 at "Australian Journal of Electrical and Electronics Engineering"

DOI: 10.1080/1448837x.2019.1651137

Abstract: ABSTRACT The standard technique of all Spectral Subtraction algorithms that are used for Speech Enhancement (SE) is to find out the clean speech by subtracting the noise estimate from the noisy speech spectrum. So the… read more here.

Keywords: noise estimation; noise; spectral subtraction; phase aware ... See more keywords
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Erratum: Ultimate Precision of Adaptive Noise Estimation [Phys. Rev. Lett. 118, 100502 (2017)].

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Published in 2017 at "Physical review letters"

DOI: 10.1103/physrevlett.119.129901

Abstract: This corrects the article DOI: 10.1103/PhysRevLett.118.100502. read more here.

Keywords: noise estimation; adaptive noise; erratum ultimate; ultimate precision ... See more keywords
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Adaptive Subspace Method for Phase Noise Estimation in CO-OFDM Systems

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Published in 2018 at "IEEE Access"

DOI: 10.1109/access.2018.2868718

Abstract: In this paper, a blind phase noise estimation method for a coherent optical orthogonal frequency-division multiplexing (CO-OFDM) system is considered. Based on the subspace approach, a simple and robust method is proposed to adaptively estimate… read more here.

Keywords: noise estimation; ofdm systems; subspace; noise ... See more keywords
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Per-Pixel Noise Estimation in Hyperspectral Images

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Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2021.3064998

Abstract: Modeling of the underlying noise in a hyperspectral image reveals important information about the characteristics of the hyperspectral sensor and the image itself. While the focus in the literature has mostly been on the estimation… read more here.

Keywords: noise estimation; noise; pixel noise; pixel ... See more keywords
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Comparative Study on Noise-Estimation-Based Fuzzy C-Means Clustering for Image Segmentation.

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Published in 2022 at "IEEE transactions on cybernetics"

DOI: 10.1109/tcyb.2022.3217897

Abstract: Since a noisy image has inferior characteristics, the direct use of Fuzzy C-Means (FCM) to segment it often produces poor image segmentation results. Intuitively, using its ideal value (noise-free image) benefits FCM's robustness enhancement. Therefore,… read more here.

Keywords: noise estimation; noise; image segmentation; image ... See more keywords
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Image Denoising Algorithm Combined with SGK Dictionary Learning and Principal Component Analysis Noise Estimation

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Published in 2018 at "Mathematical Problems in Engineering"

DOI: 10.1155/2018/1259703

Abstract: SGK (sequential generalization of -means) dictionary learning denoising algorithm has the characteristics of fast denoising speed and excellent denoising performance. However, the noise standard deviation must be known in advance when using SGK algorithm to… read more here.

Keywords: noise estimation; sgk algorithm; dictionary learning; denoising algorithm ... See more keywords
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Noise Reduction based on Multiple Copies Color Image Noise Estimation

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Published in 2019 at "International Journal on Electrical Engineering and Informatics"

DOI: 10.15676/ijeei.2019.11.3.5

Abstract: Nowadays, transmission in the form of color digital images is becoming a major method of communication. However, color digital images are often degraded by noise generated by sensors and during transmission channels. The aim of… read more here.

Keywords: color; image; noise estimation; noise reduction ... See more keywords