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 <gr...@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 >> >> >> > > -- > Douglas N. Greve, Ph.D. > MGH-NMR Center > gr...@nmr.mgh.harvard.edu > Phone Number: 617-724-2358 Fax: 617-726-7422 > > Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting > FileDrop: www.nmr.mgh.harvard.edu/facility/filedrop/index.html > > > > The information in this e-mail is intended only for the person to whom it is > addressed. If you believe this e-mail was sent to you in error and the > e-mail > contains patient information, please contact the Partners Compliance > HelpLine at > http://www.partners.org/complianceline . If the e-mail was sent to you in > error > but does not contain patient information, please contact the sender and > properly > dispose of the e-mail. > > _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
