Articles with "empirical wavelet" as a keyword



Compressive sensing MRI reconstruction using empirical wavelet transform and grey wolf optimizer

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Published in 2018 at "Neural Computing and Applications"

DOI: 10.1007/s00521-018-3812-7

Abstract: Magnetic resonance imaging (MRI) has exhibited an outstanding performance in the track of medical imaging compared to several imaging modalities, such as X-ray, positron emission tomography and computed tomography. MRI modality suffers from protracted scanning… read more here.

Keywords: image; grey wolf; wavelet transform; empirical wavelet ... See more keywords

Cepstrum-assisted empirical wavelet transform (CEWT)-based improved demodulation analysis for fault diagnostics of planetary gearboxes

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Published in 2021 at "Measurement"

DOI: 10.1016/j.measurement.2021.109796

Abstract: Abstract Demodulation analysis is a widely used approach for fault diagnostics of planetary gearboxes by identifying the fault-induced modulation effect buried in noise with complicated characteristics. To enhance the performance of demodulation analysis, previous studies… read more here.

Keywords: demodulation analysis; empirical wavelet; analysis; fault ... See more keywords

Damage detection and localization of a steel truss bridge model subjected to impact and white noise excitations using empirical wavelet transform neural network approach

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Published in 2021 at "Measurement"

DOI: 10.1016/j.measurement.2021.110060

Abstract: Abstract This paper aims to present a computational and experimental investigation on the performance of a new damage detection approach based on empirical wavelet transform (EWT) and an artificial neural network (ANN) named EWT-ANN to… read more here.

Keywords: neural network; empirical wavelet; damage; approach ... See more keywords

Weak fault feature extraction in non-Gaussian noise interference based on adaptive recombination empirical wavelet transform incorporated by sparse coding shrinkage

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Published in 2025 at "Measurement Science and Technology"

DOI: 10.1088/1361-6501/adaa92

Abstract: The fast kurtogram is a very useful tool in the field of fault diagnosis, but it also contains two drawbacks. On the one hand, its kurtosis indicator is susceptible to random impulse interference, leading to… read more here.

Keywords: empirical wavelet; recombination empirical; adaptive recombination; interference ... See more keywords

Morphological Filtering Enhanced Empirical Wavelet Transform for Mode Decomposition

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2892764

Abstract: Empirical wavelet transform (EWT) has been successfully utilized for decomposing multi-component signals into intrinsic mode functions. However, it suffers from the spectrum subdividing problem when signals contain non-stationary components which overlap in both the time… read more here.

Keywords: wavelet transform; empirical wavelet; mode; morphological filtering ... See more keywords

Frequency Phase Space Empirical Wavelet Transform for Rolling Bearings Fault Diagnosis

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2922248

Abstract: As one of the most important components in rotating machinery, rolling bearings are fragile due to their harsh working environment. The empirical wavelet transform (EWT) method has been used to identify bearing faults by constructing… read more here.

Keywords: wavelet transform; empirical wavelet; frequency; fault ... See more keywords

Deep Learning-Based Earlier Detection of Esophageal Cancer Using Improved Empirical Wavelet Transform From Endoscopic Image

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Published in 2020 at "IEEE Access"

DOI: 10.1109/access.2020.3006106

Abstract: In the current scenario, the research perspective on esophageal cancer becomes severe, high-prognosis malignancy; poor prognosis is primarily attributed to the fact that most tumors remain asymptomatic and unrelated before it grows through the esophagus.… read more here.

Keywords: empirical wavelet; esophageal cancer; image; cancer ... See more keywords

Analysis of Significant Wave Height From X-Band Radar Images Based on Empirical Wavelet Transform

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Published in 2024 at "IEEE Geoscience and Remote Sensing Letters"

DOI: 10.1109/lgrs.2024.3378751

Abstract: This letter proposes an empirical wavelet transform (EWT)-based method to analyze significant wave heights ( $H_{s}$ ) from X-band marine radar images. First, each azimuth of the selected radar subimage is decomposed by the EWT… read more here.

Keywords: inline formula; empirical wavelet; radar; wavelet transform ... See more keywords

Time-Varying Parameter Identification of Bridges Subject to Moving Vehicles Using Ridge Extraction Based on Empirical Wavelet Transform

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Published in 2020 at "International Journal of Structural Stability and Dynamics"

DOI: 10.1142/s0219455421500462

Abstract: Time-varying parameter identification of bridges subject to moving vehicles using ridge extraction based on empirical wavelet transform Jiantao Lia,b , Jian Guoa,* and Xinqun Zhub a Institute of Bridge Engineering, Zhejiang University of Technology, Hangzhou… read more here.

Keywords: time varying; bridge; time; wavelet transform ... See more keywords

RUL prediction of rolling bearings based on improved empirical wavelet transform and convolutional neural network

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Published in 2022 at "Advances in Mechanical Engineering"

DOI: 10.1177/16878132221106609

Abstract: Accurate prediction the remaining useful life (RUL) of rolling bearings under complex environmental conditions is crucial for prognostics and health management (PHM). In this paper, A new method for rolling bearing RUL prediction based on… read more here.

Keywords: wavelet transform; prediction; rolling bearings; rul ... See more keywords

Deep learning approach for skin melanoma and benign classification using empirical wavelet decomposition

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Published in 2024 at "Technology and Health Care"

DOI: 10.3233/thc-240020

Abstract: BACKGROUND: Melanoma is a malignant skin cancer that causes high mortality. Early detection of melanoma can save patients’ lives. The features of the skin lesion images can be extracted using computer techniques to differentiate early… read more here.

Keywords: thmfbs; wavelet decomposition; empirical wavelet; melanoma benign ... See more keywords