2004
DOI: 10.1155/s1110865704406167
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Time-Frequency Feature Extraction of Newborn EEG Seizure Using SVD-Based Techniques

Abstract:

The nonstationary and multicomponent nature of newborn EEG seizures tends to increase the complexity of the seizure detection problem. In dealing with this type of problems, time-frequency-based techniques were shown to outperform classical techniques. This paper presents a new time-frequency-based EEG seizure detection technique. The technique uses an estimate of the distribution function of the singular vectors associated with the time-frequency distribution of an EEG epoch to characterise the patter… Show more

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Cited by 96 publications
(60 citation statements)
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“…U and V are generally called left and right eigenvectors, or in this particular case eigentime and eigenfrequency, respectively. To create a compact representation, a distribution function was extracted for eigentimes and eigenfrequencies corresponding to the two largest eigenvalues (since eigenvectors are orthonormal, their squared elements can be considered as density functions 10 ). A histogram (10 bins) was computed for each distribution function leading to 40 new features (Eigenfrequency 1 1-10, Eigenfrequency 2 1-10, Eigentime 1 1-10 and Eigentime 2 1-10).…”
Section: Time Domain Featuresmentioning
confidence: 99%
“…U and V are generally called left and right eigenvectors, or in this particular case eigentime and eigenfrequency, respectively. To create a compact representation, a distribution function was extracted for eigentimes and eigenfrequencies corresponding to the two largest eigenvalues (since eigenvectors are orthonormal, their squared elements can be considered as density functions 10 ). A histogram (10 bins) was computed for each distribution function leading to 40 new features (Eigenfrequency 1 1-10, Eigenfrequency 2 1-10, Eigentime 1 1-10 and Eigentime 2 1-10).…”
Section: Time Domain Featuresmentioning
confidence: 99%
“…In [22], authors extracted the eigenvalues of the time-frequency matrix. In [23], authors extended the method to also incorporate information from the eigenvectors to classify EEG seizures. In [24], the last technique is applied on the S-matrix in the aim to extract features for systolic heart murmur classification.…”
Section: Feature Extraction Based On the Svdmentioning
confidence: 99%
“…In [19] authors extracted the eigenvalues of the time-frequency matrix. In [20] authors extended the method to also incorporate information from the eigenvectors to classify EEG seizures. In [21] the last technique is applied on the S-matrix in the aim to extract features for systolic heart murmur classification.…”
Section: Feature Extraction Based On the S-transformmentioning
confidence: 99%
“…Where U(M×M) and V(N×N) are orthonormal matrices so their squared elements can be considered as density function [20], …”
Section: Feature Extraction Based On the S-transformmentioning
confidence: 99%