Brain source localization using a fourth-order deflation scheme

被引：12

作者：

Albera, Laurent ^{[1
,2
]}

Ferreol, Anne ^{[3
]}

Cosandier-Rimele, Delphine ^{[1
,2
]}

Merlet, Isabelle ^{[1
,2
]}

Wendling, Fabrice ^{[1
,2
]}

机构：

[1] INSERM, U642, F-35000 Rennes, France

[2] Univ Rennes 1, LTSI, F-35042 Rennes, France

[3] THALES Commun Grp, F-92704 Colombes, France

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 2008年 / 55卷 / 02期

关键词：

backward problem; electroencephalography (EEG); fourth-order (FO) statistics; magnetoencephalography (MEG); multiple signal classification (MUSIC); sequential source localization;

D O I：

10.1109/TBME.2007.905408

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

In this paper, a high-resolution method for solving potentially ill-posed inverse problems is proposed. This method named FO-D-MUSIC allows for localization of brain current sources with unconstrained orientations from surface electroencephalographic (EEG) or magnetoencephalographic (MEG) data using spherical or realistic head geometries. The FO-D-MUSIC method is based on the following: 1) the separability of the data transfer matrix as a function of location and orientation parameters, 2) the fourth-order (FO) virtual array theory, and 3) the deflation concept extended to FO statistics accounting for the presence of potentially but not completely statistically dependent sources. Computer results display the superiority of the FO-D-MUSIC approach in different situations (very closed sources, small number of electrodes, additive Gaussian noise with unknown spatial covariance, etc.) compared to classical algorithms.

引用

页码：490 / 501

页数：12

共 27 条

[1] ICAR:: A tool for blind source separation using fourth-order statistics only [J].

Albera, L ;

Ferréol, A ;

Chevalier, P ;

Comon, P .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2005, 53 (10) :3633-3643

[2]

ALBERA L, 2005, P IEEE INT C ENG MED, P4498

[3] Time-frequency MUSIC [J].

Belouchrani, A ;

Amin, MG .

IEEE SIGNAL PROCESSING LETTERS, 1999, 6 (05) :109-110

[4] A FAST METHOD FOR FORWARD COMPUTATION OF MULTIPLE-SHELL SPHERICAL HEAD MODELS [J].

BERG, P ;

SCHERG, M .

ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 1994, 90 (01) :58-64

[5] On the virtual array concept for the fourth-order direction finding problem [J].

Chevalier, P ;

Férréol, A .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1999, 47 (09) :2592-2595

[6] A physiologically plausible spatio-temporal model for EEG signals recorded with intracerebral electrodes in human partial epilepsy [J].

Cosandier-Rimele, Delphine ;

Badier, Jean-Michel ;

Chauvel, Patrick ;

Wendling, Fabrice .

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2007, 54 (03) :380-388

[7] DIRECTION FINDING WITH AN ARRAY OF ANTENNAS HAVING DIVERSE POLARIZATIONS [J].

FERRARA, ER ;

PARKS, TM .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 1983, 31 (02) :231-236

[8]

Gantmacher F.R, 1959, Theory of Matrices, V1

[9]

Golub GH., 2013, Matrix Computations, DOI 10.56021/9781421407944

[10]

GON CSI, 2003, IEEE T BIOMED ENG, V50, P754

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