2 May
2012
2 May
'12
12:54 p.m.
Dear FreeSurfer experts,
How does one properly convert from surfaceRAS coords, as provided by fs_read_surf.m, to talairach coords? I have tried using freesurfer_surf2tal.m posted on the web by Darren Weber, supplying it with transform data from transforms/talairach.xfm, but the values returned often differ from those in tksurfer by as much as 20mm (and are clearly wrong). What I would like to do is match the coordinate system in tksurfer (which is clearly right). How does tksurfer do it?
Cheers, Jordan