Results 21 to 30 of about 6,927,747 (289)

Small baseline InSAR time series analysis: Unwrapping error correction and noise reduction

open access: yesComputational Geosciences, 2019
We present a review of small baseline interferometric synthetic aperture radar (InSAR) time series analysis with a new processing workflow and software implemented in Python, named MintPy ( https://github.com/insarlab/MintPy ).
Yunjun Zhang, H. Fattahi, F. Amelung
semanticscholar   +1 more source

Noise Reduction [PDF]

open access: yes, 2010
Among the many factors contributing to image quality degradation, noise is one of the most recurrent and difficult elements to deal with. Smart filters capable to remove noise without affecting the tiny details of a digital image are of primary importance to produce pleasant pictures.
A. Bosco, R. Rizzo
openaire   +2 more sources

Detecting Adversarial Image Examples in Deep Neural Networks with Adaptive Noise Reduction [PDF]

open access: yesIEEE Transactions on Dependable and Secure Computing, 2017
Recently, many studies have demonstrated deep neural network (DNN) classifiers can be fooled by the adversarial example, which is crafted via introducing some perturbations into an original sample.
Bin Liang   +5 more
semanticscholar   +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

A study of noise reduction mechanisms of jets with fluid inserts

open access: yes, 2020
The fluid insert technology is an active noise reduction technique that has been shown to successfully reduce supersonic jet noise in model scale nozzles.
Chitrarth Prasad, P. Morris
semanticscholar   +1 more source

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

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

Experimental evaluation of cylinder vortex shedding noise reduction using porous material

open access: yesExperiments in Fluids, 2020
The tonal noise generation of a circular cylinder in a uniform flow is an important source of aerodynamic noise. It can be found at parts of the landing gear of airplanes, at pantographs of trains, at antennas and basically all other protruding parts of ...
T. Geyer
semanticscholar   +1 more source

Research on Noise Generation Mechanism and Noise Reduction Ball Valve Measures of Ball Valve

open access: yesIEEE Access, 2020
Ball valve is the core control component for flow in HVAC (Heating, Ventilation and Air Conditioning) system. And valve's flow noise is one of the key parameters to evaluate its performance.
Jin Zhang   +4 more
doaj   +1 more source

Apply wavelet packet soft threshold noise reduction method to aviation gamma energy spectrum

open access: yesHe jishu, 2022
BackgroundWith the continuous development of nuclear technology, radioactive material exploration requires higher and higher detection accuracy of aerial gamma energy spectrometer, meanwhile, the wavelet packet soft threshold noise reduction method has ...
ZHANG Song   +7 more
doaj   +1 more source

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