Results 31 to 40 of about 205,040 (276)
Speech Enhancement via EMD [PDF]
EURASIP Journal on Advances in Signal Processing, 2008 In this study, two new approaches for speech signal noise reduction based on the empirical mode decomposition (EMD) recently introduced by Huang et al. (1998) are proposed. Based on the EMD, both reduction schemes are fully data-driven approaches. Noise signal is decomposed adaptively into oscillatory components called intrinsic mode functions (IMFs ...
Kais Khaldi +3 more
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Noise Reduction of Welding Crack AE Signal Based on EMD and Wavelet Packet
Sensors, 2020 The acoustic emission (AE) signal collected by a sensor in the welding process has an overlapping frequency band and weak characteristics under a complex noise background. It is difficult for the wavelet noise reduction method, with single basis function,
Kuanfang He +4 more
doaj +1 more source
Hilbert spectrum based features for speech/music classification [PDF]
Serbian Journal of Electrical Engineering, 2022 Automatic Speech/Music classification uses different signal processing techniques to categorize multimedia content into different classes. The proposed work explores Hilbert Spectrum (HS) obtained from different AM-FM components of an audio ...
Kumar Arvind +2 more
doaj +1 more source
Improved EMD Using doubly-iterative sifting and high order spline interpolation [PDF]
, 2008 Empirical mode decomposition (EMD) is a signal analysis method which has received much attention lately due to its application in a number of fields. The main disadvantage of EMD is that it lacks a theoretical analysis and, therefore, our understanding ...
Kopsinis, Yannis, McLaughlin, Stephen
core +2 more sources
3A-EMD: A generalized approach for monovariate and multivariate EMD [PDF]
10th International Conference on Information Science, Signal Processing and their Applications (ISSPA 2010), 2010 EMD is an emerging topic in signal processing research and is applied in various practical fields. Its recent extension to multivariate signals, motivated by the need to jointly analyze multi-channel signals, is an active topic of research. However, all the existing extensions specifically hold either mono-, bi- or tri-variate signals or require ...
Fleureau, Julien +4 more
openaire +2 more sources
The Similarity Comparison Algorithm of Free-Form Surfaces with Single Curvature Feature [PDF]
Xibei Gongye Daxue Xuebao, 2018 This paper studies the shape similarity evaluation of free-form surfaces expressed by B-spline with single curvature feature and proposes a similarity evaluation algorithm based on curvature feature.
doaj +1 more source
ASN Neuro, 2014 In inflammatory demyelinating diseases such as multiple sclerosis (MS), myelin degradation results in loss of axonal function and eventual axonal degeneration. Differentiation of resident oligodendrocyte precursor cells (OPCs) leading to remyelination of
Carlos E. Pedraza +6 more
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Health and Quality of Life Outcomes, 2020 Objectives For valid and reliable assessment of patients’ Health-Related Quality of Life (HRQoL), it is crucial to use psychometrically robust instruments.
Murtuza Bharmal +4 more
doaj +1 more source
Rehaussement du signal de parole par EMD et opérateur de Teager-Kaiser [PDF]
, 2014 The authors would like to thank Professor Mohamed Bahoura from Universite de Quebec a Rimouski for fruitful discussions on time adaptive thresholdingIn this paper a speech denoising strategy based on time adaptive thresholding of intrinsic modes ...
BOUDRAA, Abdel-Ouahab +2 more
core +5 more sources
Journal of Analytical Methods in Chemistry, 2014 Biological samples present a range of complexities from homogeneous purified protein to multicomponent mixtures. Accurate qualification of such samples is paramount to downstream applications.
Ivona Strug +9 more
doaj +1 more source