EEG dipole localization bounds for head models with parameter uncertainties

Author

Radich, Bill ; Buckley, Kevin M.

Author_Institution

Dept. of Electr. Eng., Minnesota Univ., Minneapolis, MN, USA

Volume

iv

fYear

1994

fDate

19-22 Apr 1994

Abstract

The Cramer-Rao bound for unbiased location estimation of multiple current dipoles is derived under the assumption of a general head model parameterized by a combination of deterministic and stochastic parameters. The expression (also applicable to MEG) thus characterizes fundamental limits on EEG localization performance due to the effects of both statistical measurement noise and model uncertainty

Keywords

array signal processing; electroencephalography; magnetoencephalography; medical signal processing; parameter estimation; physiological models; random noise; stochastic processes; Cramer-Rao bound; EEG dipole localization bounds; MEG; deterministic parameters; head models; model uncertainty; multiple current dipoles; parameter uncertainties; sensor array; statistical measurement noise; stochastic parameters; unbiased location estimation; Brain modeling; Covariance matrix; Electroencephalography; Forward contracts; Noise measurement; Position measurement; Sensor arrays; Sensor phenomena and characterization; Stochastic processes; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1994. ICASSP-94., 1994 IEEE International Conference on

Conference_Location

Adelaide, SA

ISSN

1520-6149

Print_ISBN

0-7803-1775-0

Type

conf

DOI

10.1109/ICASSP.1994.389872

Filename

389872