Dear Doug Thanks for your response. What I meant is, for example, some voxels would be "occupied" by edges of the mesh even if they are not occupied by any vertices. As you move to higher and higher resolutions, presumably more and more voxels would fall into this category. That being said, I understand that on average this shouldn't affect the output very much. Best Aaron
On Mon, Feb 14, 2011 at 2:51 PM, Douglas N Greve greve@nmr.mgh.harvard.edu wrote:
It does not take into account any info about the faces or edges. I'm not sure about your resolution question. Can you elaborate? doug
Aaron Alexander-Bloch wrote:
Dear all,
I am hoping to use surf2vol to generate high resolution masks of the gray/white surface, so something like the following command:
mri_surf2vol --sd /subj/dir/ --identity subid --hemi lh --surf white --mkmask --o volume.mgz --template ./template.mgz
However I'm wondering about what exactly the algorithm does. I understand that the vertices are placed at the closest voxel in the template space. But does the algorithm take into account information about the faces/lines of the mesh in addition to the vertices? If so, how? If not, does that imply a limit to the resolution of the template space that should be used with the command?
Thanks very much in advance for any help.
Best, Aaron Alexander-Bloch PhD student, University of Cambridge _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
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