Title :
Regularization approach to the single trial estimation of multi channel evoked potentials
Author :
Karjalainen, P.A. ; Kaipio, J.P. ; Kolehmainen, V. ; Koistinen, A.S. ; Partanen, J.
Author_Institution :
Dept. of Appl. Phys., Kuopio Univ., Finland
Abstract :
A method for the single trial estimation of the evoked potentials is proposed. The method is based on a regularized least squares scheme in which the second order statistics of the set of multi channel measurements is used to form a prior information model for the evoked potentials. The method can be applied to the estimation of the target responses in the P300 test
Keywords :
bioelectric potentials; biomedical measurement; medical signal processing; statistical analysis; P300 test; multichannel evoked potentials; multichannel measurements set; prior information model; regularized least squares scheme; second order statistics; single trial estimation method; target responses estimation; Brain modeling; Covariance matrix; Electroencephalography; Laboratories; Least squares methods; Length measurement; Occupational health; Physics; Testing; Vectors;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802500
