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Performance of Damage Identification Based on Directional Wavelet Transforms and Entopic Weights Using Experimental Shearographic Testing Results [PDF]

open access: yesSensors, 2021
The paper aims to analyze the performance of the damage identification algorithms using the directional wavelet transforms, which reveal higher sensitivity for various orientations of spatial damage together with lower susceptibility to noise.
Andrzej Katunin
doaj   +2 more sources

Wavelet transforms on Gelfand-Shilov spaces and concrete examples [PDF]

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we study the continuity properties of wavelet transforms in the Gelfand-Shilov spaces with the use of a vanishing moment condition. Moreover, we also compute the Fourier transforms and the wavelet transforms of concrete functions in the ...
Naohiro Fukuda   +2 more
doaj   +2 more sources

Comparing different wavelet transforms on removing electrocardiogram baseline wanders and special trends [PDF]

open access: yesBMC Medical Informatics and Decision Making, 2020
Background Electrocardiogram (ECG) signal, an important indicator for heart problems, is commonly corrupted by a low-frequency baseline wander (BW) artifact, which may cause interpretation difficulty or inaccurate analysis.
Chao-Chen Chen, Fuchiang Rich Tsui
doaj   +2 more sources

Wavelet Transforms Significantly Sparsify and Compress Tactile Interactions [PDF]

open access: yesSensors
As higher spatiotemporal resolution tactile sensing systems are being developed for prosthetics, wearables, and other biomedical applications, they demand faster sampling rates and generate larger data streams.
Ariel Slepyan   +3 more
doaj   +2 more sources

UV Spectrophotometric Simultaneous Determination of Paracetamol and Ibuprofen in Combined Tablets by Derivative and Wavelet Transforms [PDF]

open access: yesThe Scientific World Journal, 2014
The application of first-order derivative and wavelet transforms to UV spectra and ratio spectra was proposed for the simultaneous determination of ibuprofen and paracetamol in their combined tablets.
Vu Dang Hoang   +3 more
doaj   +2 more sources

A Comparative Study of Shearlet, Wavelet, Laplacian Pyramid, Curvelet, and Contourlet Transform to Defect Detection [PDF]

open access: yesJournal of Soft Computing in Civil Engineering, 2023
This study presents a new approach based on shearlet transform for the first time to detect damages, and compare it with the wavelet, Laplacian pyramid, curvelet, and contourlet transforms to specify different types of defects in plate structures ...
Sepideh Vafaie, Eysa Salajegheh
doaj   +1 more source

Generalized Continuous Integral Wavelet Transform and Its Properties

open access: yesRatio Mathematica, 2022
In this paper, the generalized admissibility condition has been obtained and corresponding generalized continuous integral wavelet transforms have been defined. Two new theorems on generalized continuous integral wavelet transforms are established.
Manoj Kumar
doaj   +1 more source

Pearson Correlation and Discrete Wavelet Transform for Crack Identification in Steel Beams

open access: yesMathematics, 2022
Discrete wavelet transform is a useful means for crack identification of beam structures. However, its accuracy is severely dependent on the selecting mother wavelet and vanishing moments, which raises a significant challenge in practical structural ...
Morteza Saadatmorad   +4 more
doaj   +1 more source

The Improvement of the Discrete Wavelet Transform

open access: yesMathematics, 2023
Discrete wavelet transforms are widely used in signal processing, data compression and spectral analysis. For discrete data with finite sizes, one always pads the data with zeros or extends the data into periodic data before performing the discrete ...
Zhihua Zhang
doaj   +1 more source

The wavelet transforms technique in the computer-aided system for controlling the quarry unmanned vehicles [PDF]

open access: yesE3S Web of Conferences, 2021
Introduction. Purpose of the work. Within the framework of the computer-aided system, a technology has been formed for the method of controlling the current trajectories (CTs) of unmanned vehicles (UMVs) when they move along routes in a quarry in open ...
Chicherin Ivan   +3 more
doaj   +1 more source

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