I'm not sure what you mean. For a given vertex, mri_vol2surf finds the closest voxel in the volume to that vertex and asigns the vertex the value from that voxel (interpolation possible too).

     

I have some questions regarding how MRI_vol2surf works.  More specifically, how does it handle the vertices when performing the process.  

If the same vertex is the closest to multiple locations on the surface file, is it projected to all those locations?  If so, is there any limit?  or will it project that activity to every location it can?

Or, is the activity at each vertex only allowed to be projected to a single location on the inflated surface?

Thank you for your time.

Nicholas Heugel

Biomedical Engineering Ph.D Candidate

Marquette University

_______________________________________________
Freesurfer mailing list
Freesurfer@nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer