Title :
Comparison of the accuracy of two segmentation methods in medium rate EEG transitions
Author :
Hiltunen, J.K. ; Kaipio, Jari P.
Author_Institution :
Dept. of Appl. Phys., Kuopio Univ., Finland
Abstract :
Two methods for the estimation of medium rate transitions of nonstationary EEG are compared. The first method is based on basis constrained least squares time-varying autoregressive model (TVARLS). This model is reparametrized so that a single parameter determines when the change occurs. The second method is a segmentation algorithm (Bodenstein-Praetorius segmenter). The method is based on the comparison of changes of power spectra between two short EEG epochs. The comparison of these methods is performed using realistic EEG simulations
Keywords :
electroencephalography; medical signal processing; spectral analysis; Bodenstein-Praetorius segmenter; EEG analysis; basis constrained least squares time-varying autoregressive model; electrodiagnostics; power spectra changes comparison; reparametrized model; segmentation algorithm; signal segmentation; Adaptive algorithm; Brain modeling; Delay estimation; Electroencephalography; Frequency synchronization; Least squares methods; Neuroscience; Physics; Rhythm; Steady-state;
Conference_Titel :
Engineering in Medicine and Biology Society, 2000. Proceedings of the 22nd Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-6465-1
DOI :
10.1109/IEMBS.2000.901515
