Hi, Could you let me know the format of the surface generated by freesurfer? Is that easy to convert it to *.vtk? And also is the surface in the original subject space or in Talairach space? Thanks
Anqi Qiu Center for Imaging Science The Johns Hopkins University
Anqi,
The default surface file generated by freesurfer is a proprietary format, but the freesurfer utility 'mris_convert' will convert to ascii and vtk formats (among others). Two examples:
mris_convert rh.pial rh.pial.asc
creates an ascii file of triangle vertices and faces, and:
mris_convert rh.pial rh.pial.vtk
creates a vtk formated file. See:
mris_convert --help
and also:
http://www.grahamwideman.com/gw/brain/fs/surfacefileformats.htm
Coords are in subject space (not talairach space, but a mris_convert allows specify a transform file).
Nick
On Mon, 2006-08-07 at 10:13 -0400, Anqi Qiu wrote:
Hi, Could you let me know the format of the surface generated by freesurfer? Is that easy to convert it to *.vtk? And also is the surface in the original subject space or in Talairach space? Thanks
Anqi Qiu Center for Imaging Science The Johns Hopkins University
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Anqi,
the surface is a binary format. You can convert it to ascii using mris_convert (the ascii format is defined on our wiki). They are in native space, not talairach.
cheers, Bruce
On Mon, 7 Aug 2006, Anqi Qiu wrote:
Hi, Could you let me know the format of the surface generated by freesurfer? Is that easy to convert it to *.vtk? And also is the surface in the original subject space or in Talairach space? Thanks
Anqi Qiu Center for Imaging Science The Johns Hopkins University
Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
freesurfer@nmr.mgh.harvard.edu