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
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