FT_HEADMODEL_INTERPOLATE
Note that this reference documentation is identical to the help that is displayed in MATLAB when you type “help ft_headmodel_interpolate”.
FT_HEADMODEL_INTERPOLATE describes a volume conduction model of the head in which subsequent leadfield computations can be performed using a simple interpolation scheme. Use as headmodel = ft_headmodel_interpolate(filename, sens, leadfield) or headmodel = ft_headmodel_interpolate(filename, sens, leadfield) The input parameters are the filename to which the model will be written, the electrode definition (see ft_DATATYPE_SENS). The third input argument is either a pre-computed leadfield structure from FT_PREPARE_LEADFIELD or a the output of a previous call to FT_HEADMODEL_INTERPOLATE. The output volume conduction model is stored on disk in a MATLAB file together with a number of NIFTi files. The mat file contains a structure with the following fields headmodel.sens = structure, electrode sensor description, see FT_DATATYE_SENS headmodel.filename = cell-array with NIFTI filenames, one file per channel and contains headmodel.dim = [Nx Ny Nz] vector with the number of grid points along each dimension headmodel.transform = 4x4 homogenous transformation matrix headmodel.unit = string with the geometrical units of the positions, e.g. 'cm' or 'mm' to describe the source positions. See also FT_PREPARE_VOL_SENS, FT_COMPUTE_LEADFIELD