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FEM and FDM in the EEG is relatively problem-solving


Chinese Abstract: From the algorithm accuracy, efficiency and complexity of the three aspects of isotropic three-dimensional EEG forward problem solution of the finite element method and finite difference method were compared, respectively, using three concentric sphere model and even dipole source modeling has three kinds of activities the organization 's head and brain neurons to study the first model mesh refinement,sac hermes birkin, symmetry and dipole source direction,mbt chaussures paris, the eccentricity of the finite difference and finite element method accuracy and efficiency impact. Simulation results show that the accuracy of the finite element method vulnerable to the impact of the tangential dipole,abercrombie france, while the accuracy of the finite difference method vulnerable to the impact of the radial dipole in the same grid refinement, the two algorithms need the same consumption of machine time; as vulnerable to grid finite element method accuracy the impact of model symmetry, finite difference method for real head model than the finite element method to build the grid is simple, intuitive.
EEG finite element method,abercrombie fitch paris, finite difference method is the problem

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