Electrical brain mapping on the real surface of the scalp obtained by MRI

Author

Forero, M.G. ; Langevin, IF

Author_Institution

Div. Imagerie Med., Univ. de Technol. de Compiegne, France

Volume

2

fYear

1995

fDate

20-23 Sep 1995

Firstpage

1635

Abstract

A new method for the 3-D reconstruction of the head based on the run length technique is presented for mapping the electrical brain activity on the real scalp of the patient. The process is performed in three steps. First, a binarization of the image is obtained from the analysis of the histogram; then, the noise is eliminated with a morphologic filter and finally a run length technique is employed to fill the head and at the same time clear up the remaining noise. After the sampling of the contour, the head is displayed. Electrical brain mapping is based on spherical spline interpolation with the best-fitting sphere on the real head and represented over the scalp

Keywords

bioelectric potentials; biomedical NMR; brain; electroencephalography; image reconstruction; image sampling; image segmentation; image sequences; interpolation; mathematical morphology; medical image processing; splines (mathematics); 3-D reconstruction; EEG signals; MRI; MRI segmentation; best-fitting sphere; contour sampling; electrical brain mapping; head; histogram; image binarization; morphologic filter; noise; patient; real surface; run length technique; scalp; spherical spline interpolation; Brain mapping; Filters; Head; Histograms; Image analysis; Image sampling; Scalp; Surface morphology; Surface reconstruction; Three dimensional displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1995., IEEE 17th Annual Conference

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-2475-7

Type

conf

DOI

10.1109/IEMBS.1995.579866

Filename

579866