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- Title
Coupling of Point Collocation Meshfree Method and FEM for EEG Forward Solver.
- Authors
Chany Lee; Choi, Jong-Ho; Jung, Ki-Young; Jung, Hyun-Kyo
- Abstract
For solving electroencephalographic forward problem, coupled method of finite element method (FEM) and fast moving least square reproducing kernel method (FMLSRKM) which is a kind of meshfree method is proposed. Current source modeling for FEM is complicated, so source region is analyzed usingmeshfreemethod. First order of shape function is used for FEM and second order for FMLSRKM because FMLSRKM adopts point collocation scheme. Suggested method is tested using simple equation using 1-, 2-, and 3-dimensional models, and error tendency according to node distance is studied. In addition, electroencephalographic forward problem is solved using spherical head model. Proposed hybrid method can produce well-approximated solution.
- Subjects
MESHFREE methods; FINITE element method; REPRODUCING kernel (Mathematics); MATHEMATICAL models; ELECTROENCEPHALOGRAPHY; APPROXIMATION theory; LEAST squares; PROBLEM solving
- Publication
Journal of Applied Mathematics, 2012, p1
- ISSN
1110-757X
- Publication type
Article
- DOI
10.1155/2012/840593