Hi Doug, thanks for the answer. This works great. Franz

Am 18.10.2012 um 17:37 schrieb Douglas N Greve:

Hi Franz, try mapping the xyz coordinates of the individual into fsaverage6 (or fsaverage5 or lower) space. This should solve both of your problems (I think). doug

On 10/18/2012 07:53 AM, Franz Liem wrote:

...

Dear FS experts,

I would like to downsample a subject's white surface to arrive with a smaller number of vertices in order to feed the surface into FSL's surface tracking.

I tried to map the fsaverage6 onto the single subject: mri_surf2surf --hemi lh --srcsubject fsaverage6 --sval-xyz white --trgsubject s01 --trgsurfval white.ico6 --tval-xyz --trgicoorder 6

If I load it into tksurfer, the surface now looks (as expected) much coarser. However, the number of vertices is still ~ 130k.

Furthermore, it would be great if vertex x would spatially correspond in all subjects.

Any advice is much appreciated, Cheers, Franz _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer

-- Douglas N. Greve, Ph.D. MGH-NMR Center greve@nmr.mgh.harvard.edu Phone Number: 617-724-2358 Fax: 617-726-7422

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