Results 21 to 30 of about 375,529 (293)
Effective Wavelet Algorithm for an Automatic Detection of Atrial Fibrillation
Advances in Electrical and Computer Engineering, 2020 Cardiac anomalies are usually marked through irregular cardiac cycles. Atrial fibrillation is given through a rapid beating of the atria, announcing a possible heart failure or stroke. Electrocardiograms are an efficient way of supervising the electric
ARVINTI, B., ISAR, A., COSTACHE, M.
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IEEE Access, 2020 We use the proper orthogonal decomposition (POD) method to decompose acoustic imaging from wavelet-based beamforming results into their corresponding modes, and demonstrate the method to analyze the noise characteristics of small-dimensional components ...
Sicong Liang +3 more
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Wavelet transformation on a finite interval
Informatika, 2021 Integral transformations on a finite interval with a singular basis wavelet are considered. Using a sequence of such transformations, the problem of nonparametric approximation of a function is solved.
V. M. Romanchak
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Beam-like damage detection methodology using wavelet damage ratio and additional roving mass
Fracture and Structural Integrity, 2022 Early damage detection plays an essential role in the safe and satisfactory maintenance of structures. This work investigates techniques that use only damaged structure responses.
Juliana C. Santos +5 more
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Rotationally invariant texture features using the dual-tree complex wavelet transform [PDF]
, 2000 New rotationally invariant texture feature extraction methods are introduced that utilise the dual-tree complex wavelet transform (DT-CWT). The complex wavelet transform is a new technique that uses a dual tree of wavelet filters to obtain the real and ...
Bull, David +2 more
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ISPRS International Journal of Geo-Information, 2016 Global Positioning System (GPS) structural health monitoring data collection is one of the important systems in structure movement monitoring. However, GPS measurement error and noise limit the application of such systems. Many attempts have been made to
Mosbeh R. Kaloop +2 more
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Maximum-entropy image reconstruction using wavelets [PDF]
, 2003 Wavelet functions allow the sparse and efficient representation of a signal at different scales. Recently the application of wavelets to the denoising of maps of cosmic microwave background (CMB) fluctuations has been proposed. The maximum-entropy method
Hobson, M. P. +2 more
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Baltic Journal of Economics, 2019 This paper investigates how oil price changes affect consumer price inflation in eleven Central and Eastern European countries. We use a wavelet-based Markov switching approach in order to distinguish between the effects at different time horizons.
Dejan Živkov +2 more
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Forecasting daily river flow using an artificial flora–support vector machine hybrid modeling approach (case study: Karkheh Catchment, Iran) [PDF]
Environmental Resources Research, 2020 In this study, a hybrid support vector machine–artificial flora algorithm method was developed to estimate the flow rate of Karkheh Catchment rivers using daily discharge statistics.
R. Dehghani +3 more
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On the Hilbert transform of wavelets
, 2011 A wavelet is a localized function having a prescribed number of vanishing moments. In this correspondence, we provide precise arguments as to why the Hilbert transform of a wavelet is again a wavelet.
Chaudhury, Kunal Narayan, Unser, Michael
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