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Correlation-based alignment of multichannel signals and application to paroxysmal events

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6 Author(s)
Kalitzin, S. ; Dutch Epilepsy Clinics Found., Heemstede, Netherlands ; Zbijewski, W. ; Parra, J. ; Velis, D.
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We propose a new group-theoretical approach to the problem of alignment of time events in multichannel signal recordings. Such an alignment is an essential phase in the classification of transients in electroencephalogram/magnetoencephalogram (MEG) signals. A common reference frame is reconstructed applying a time translation transformation based on delayed mutual correlation functions of the individual events. The method is applied to MEG data sets recorded from epileptic patients showing paroxysmal interictal discharges.

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Biomedical Engineering, IEEE Transactions on  (Volume:49 ,  Issue: 9 )