A 3-dimensional EEG topography based on the polygon technique

To obtain 3-D topography of EEG records, the authors propose a new method based on the polygon mapping technique. The method has the low complexity to calculate the interpolation of the EEG records on the scalp and maintains the high resolution topography because the polygon technique performs the interpolation at the only vertexes of each polygon. The authors implemented the topographic system with 3D barycentric and polynomial algorithms in a personal computer