Title :
Localization of dipole sources with time-frequency pre-processing of the EEG
Author :
Sun, Mingui ; Baumann, Steve B. ; Yan, Xiaopu ; Qian, Shie ; Sonmez, Murat ; Sclabassi, Robert J.
Author_Institution :
Dept. of Neurosurg., Pittsburgh Univ., PA, USA
Abstract :
Time-frequency signal processing techniques are applied to the multi-channel electroencephalogram (EEG) to extract features of the desired signal from background brain waves. The signal is then synthesized with an iterative procedure and utilized to localize dipolar current sources in the brain based on models of the head shape and conductivity. This time-frequency pre-processing technique produced improved performance over the traditional method
Keywords :
electroencephalography; feature extraction; iterative methods; medical signal processing; time-frequency analysis; background brain waves; desired signal; dipolar current sources; dipole sources localization; electrodiagnostics; head conductivity; head shape; iterative procedure; time-frequency EEG preprocessing; Brain modeling; Conductivity; Electrodes; Electroencephalography; Feature extraction; Neurophysiology; Shape; Signal processing; Signal synthesis; Time frequency analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-2475-7
DOI :
10.1109/IEMBS.1995.579502
