This shows you the differences between two versions of the page.

Link to this comparison view

reference:ft_volumereslice [2018/08/23 14:43] (current)
Line 1: Line 1:
 +=====  FT_VOLUMERESLICE =====
 +Note that this reference documentation is identical to the help that is displayed in MATLAB when you type "help ft_volumereslice"​.
 +  <a href=/​reference/​ft_volumereslice><​font color=green>​FT_VOLUMERESLICE</​font></​a>​ flips, permutes, interpolates and reslices a volume along the
 +  principal axes of the coordinate system according to a specified resolution.
 +  Use as
 +    mri = ft_volumereslice(cfg,​ mri)
 +  where the input MRI should be a single anatomical or functional MRI volume that
 +  results from <a href=/​reference/​ft_read_mri><​font color=green>​FT_READ_MRI</​font></​a>​ or <a href=/​reference/​ft_volumerealign><​font color=green>​FT_VOLUMEREALIGN</​font></​a>​. You can visualize the the input and
 +  output using <a href=/​reference/​ft_sourceplot><​font color=green>​FT_SOURCEPLOT</​font></​a>​.
 +  The configuration structure can contain
 +    cfg.method ​    = string, '​flip',​ '​nearest',​ '​linear',​ '​cubic'​ or '​spline'​ (default = '​linear'​)
 +    cfg.downsample = integer number (default = 1, i.e. no downsampling)
 +  If you specify the method as '​flip',​ it will only permute and flip the volume, but
 +  not perform any interpolation. For the other methods the input volumetric data will
 +  also be interpolated on a regular voxel grid.
 +  For the interpolation methods you should specify
 +    cfg.resolution = number, in physical units
 +    cfg.xrange ​    = [min max], in physical units
 +    cfg.yrange ​    = [min max], in physical units
 +    cfg.zrange ​    = [min max], in physical units
 +  or alternatively with
 +    cfg.dim ​       = [nx ny nz], size of the volume in each direction
 +  If the input MRI has a coordsys-field and you don't specify explicit the
 +  xrange/​yrange/​zrange,​ the centre of the volume will be shifted (with respect to the
 +  origin of the coordinate system), for the brain to fit nicely in the box.
 +  To facilitate data-handling and distributed computing you can use
 +    cfg.inputfile ​  ​= ​ ...
 +    cfg.outputfile ​ =  ...
 +  If you specify one of these (or both) the input data will be read from a *.mat
 +  file on disk and/or the output data will be written to a *.mat file. These mat
 +  files should contain only a single variable, corresponding with the
 +  input/​output structure.
 +  See also <a href=/​reference/​ft_volumerealign><​font color=green>​FT_VOLUMEREALIGN</​font></​a>,​ <a href=/​reference/​ft_volumedownsample><​font color=green>​FT_VOLUMEDOWNSAMPLE</​font></​a>,​ <a href=/​reference/​ft_sourceinterpolate><​font color=green>​FT_SOURCEINTERPOLATE</​font></​a>,​ <a href=/​reference/​ft_sourceplot><​font color=green>​FT_SOURCEPLOT</​font></​a>​