Results 21 to 30 of about 115,954 (269)
CNN AND LSTM FOR THE CLASSIFICATION OF PARKINSON'S DISEASE BASED ON THE GTCC AND MFCC
Parkinson's disease is a recognizable clinical syndrome with a variety of causes and clinical presentations; it represents a rapidly growing neurodegenerative disorder.
Nouhaila BOUALOULOU +2 more
doaj +1 more source
Speech Enhancement via EMD [PDF]
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
openaire +3 more sources
Hilbert spectrum based features for speech/music classification [PDF]
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
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Audio Watermarking Via EMD [PDF]
In this paper a new adaptive audio watermarking algorithm based on Empirical Mode Decomposition (EMD) is introduced. The audio signal is divided into frames and each one is decomposed adaptively, by EMD, into intrinsic oscillatory components called Intrinsic Mode Functions (IMFs).
Khaldi, Kais, Boudraa, Abdel-Ouahab
openaire +4 more sources
Noise Reduction of Welding Crack AE Signal Based on EMD and Wavelet Packet
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
3A-EMD: A generalized approach for monovariate and multivariate EMD [PDF]
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]
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
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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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
Temporal and spatial adaptation of transient responses to local features
Interpreting visual motion within the natural environment is a challenging task, particularly considering that natural scenes vary enormously in brightness, contrast and spatial structure.
David C O'Carroll +3 more
doaj +1 more source

