Magnetic source estimation in the cortical region

Kazuhiro Mino, Noboru Niki, Nobukazu Nakasato, Takashi Yoshimoto

Research output: Contribution to conferencePaperpeer-review

Abstract

In this work we estimate magnetic sources in the cortical region. The region for estimation is limited to the surface of the cortex. Considering this limitation, the cortex is extracted from MR images. We assume that the points on the extracted cortex are current dipoles. All the acquired points are considered as candidate sources. We perform the estimation by means of the MUSIC method which is applied to the limited region. In the MUSIC method, the measured magnetic field data is divided into two subspaces, the signal subspace and the noise subspace. The MDL criterion is used for this division.

Original languageEnglish
Pages261-264
Number of pages4
Publication statusPublished - 1996
EventProceedings of the 1996 IEEE International Conference on Image Processing, ICIP'96. Part 2 (of 3) - Lausanne, Switz
Duration: 1996 Sept 161996 Sept 19

Conference

ConferenceProceedings of the 1996 IEEE International Conference on Image Processing, ICIP'96. Part 2 (of 3)
CityLausanne, Switz
Period96/9/1696/9/19

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