Results 31 to 40 of about 7,223,170 (368)

HEVC Encoding Assisted with Noise Reduction [PDF]

open access: yesInternational Journal of Electronics and Telecommunications, 2018
Optimization of encoding process in video compression is an important research problem, especially in the case of modern, sophisticated compression technologies.
Olgierd Stankiewicz   +5 more
doaj   +1 more source

Speckle Noise Reduction Technique for SAR Images Using Statistical Characteristics of Speckle Noise and Discrete Wavelet Transform

open access: yesRemote Sensing, 2019
Synthetic aperture radar (SAR) images map Earth’s surface at high resolution, regardless of the weather conditions or sunshine phenomena. Therefore, SAR images have applications in various fields.
Hyunho Choi, Jechang Jeong
semanticscholar   +1 more source

Reducing MOSFET 1/f Noise and Power Consumption by "Switched Biasing" [PDF]

open access: yes, 2000
Switched biasing is proposed as a technique for reducing the 1/f noise in MOSFET's. Conventional techniques, such as chopping or correlated double sampling, reduce the effect of 1/f noise in electronic circuits, whereas the switched biasing technique ...
Gierkink, Sander L.J.   +3 more
core   +2 more sources

Molecular Filters for Noise Reduction [PDF]

open access: yesBiophysical Journal, 2018
Living systems are inherently stochastic and operate in a noisy environment, yet despite all these uncertainties, they perform their functions in a surprisingly reliable way. The biochemical mechanisms used by natural systems to tolerate and control noise are still not fully understood, and this issue also limits our capacity to engineer reliable ...
Laurenti, L   +3 more
openaire   +5 more sources

Noise Reduction in ECG Signals Using Fully Convolutional Denoising Autoencoders

open access: yesIEEE Access, 2019
The electrocardiogram (ECG) is an efficient and noninvasive indicator for arrhythmia detection and prevention. In real-world scenarios, ECG signals are prone to be contaminated with various noises, which may lead to wrong interpretation.
Hsin-Tien Chiang   +5 more
semanticscholar   +1 more source

Study on Noise Reduction with Paving Different Low Noise Pavement Materials

open access: yesApplied Sciences, 2021
This paper evaluates the amount of noise reduction when using different pavement materials in two adjacent lanes, where the close-proximity (CPX) method is introduced to analyze the tire/road noise before and after pavement maintenance.
Minmin Yuan   +3 more
doaj   +1 more source

Noise reduction mechanisms of sawtooth and combed-sawtooth trailing-edge serrations

open access: yesJournal of Fluid Mechanics, 2018
Trailing-edge serrations are add ons retrofitted to wind-turbine blades to mitigate turbulent boundary-layer trailing-edge noise. This manuscript studies the physical mechanisms behind the noise reduction by investigating the far-field noise and the ...
F. Avallone   +3 more
semanticscholar   +1 more source

Directional active noise control for drone noise reduction [PDF]

open access: yesJASA Express Letters
Drones have become essential tools for applications ranging from aerial surveillance to last-mile delivery, raising concerns about noise pollution in populated environments.
Hanwen Bi   +3 more
doaj   +1 more source

Quadratic approach for single-channel noise reduction

open access: yesEURASIP Journal on Audio, Speech, and Music Processing, 2020
In this paper, we introduce a quadratic approach for single-channel noise reduction. The desired signal magnitude is estimated by applying a linear filter to a modified version of the observations’ vector.
Gal Itzhak, Jacob Benesty, Israel Cohen
doaj   +1 more source

Deep Learning Based Noise Reduction for Brain MR Imaging: Tests on Phantoms and Healthy Volunteers

open access: yesMagnetic Resonance in Medical Sciences, 2019
Purpose: To test whether our proposed denoising approach with deep learning-based reconstruction (dDLR) can effectively denoise brain MR images. Methods: In an initial experimental study, we obtained brain images from five volunteers and added different ...
M. Kidoh   +10 more
semanticscholar   +1 more source

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