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

Volume

46

Issue

5

fYear

1999

fDate

5/1/1999 12:00:00 AM

Firstpage

601

Lastpage

605

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;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/10.759060

Filename

759060