Title :
Time-frequency matching of warped depth-EEG seizure observations
Author :
Wendling, F. ; Shamsollahi, M.B. ; Badier, J.M. ; Bellanger, J.J.
Author_Institution :
Lab. Traitement du Signal et de l´´Image, Rennes I Univ., France
fDate :
5/1/1999 12:00:00 AM
Abstract :
A methodology of comparing depth-EEG seizure recordings is presented. The approach is based on an extension of Wagner and Fischer´s (1974) algorithm to N×2-dimensional sets, allowing a confrontation of nonequal duration observations characterized by their time-frequency distributions. It proceeds by time and frequency warping on the first observation to match the second, under cost constraints. Preliminary results show that relevant signatures can be extracted from recordings.
Keywords :
electroencephalography; medical signal processing; time-frequency analysis; N/spl times/2-dimensional sets; Wagner-Fischer algorithm; cost constraints; electrodiagnostics; epilepsy; nonequal duration observations; relevant signatures extraction; time-frequency matching; warped depth-EEG seizure observations; Costs; Data mining; Distributed computing; Electroencephalography; Epilepsy; Labeling; Signal processing algorithms; Surgery; Temporal lobe; Time frequency analysis; Algorithms; Electroencephalography; Epilepsy, Temporal Lobe; Humans; Reproducibility of Results; Signal Processing, Computer-Assisted;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
