Hi all,
I'm trying to register two brain volumes using Freesurfer. I need to find a mapping for each voxel of the MR image to the reference image. I tried using mri_register with the option -vf as the wiki documentation suggests that it outputs a vector field. Instead it expects a variance volume. The surface registrations do not work for me either, because they don't include a mapping of inner points. I tried Talairach transformation, but, it is a rigid registration, and I need a non-rigid registration.
Is there a tool in Freesurfer that can register two brain volumes with a mapping of each voxel?
Thanks,
Zeynep.
Hi Zeynep,
Could you give more details about your registration problem? What are the modalities that you are registering? Are they of the same subject? What kind of registration accuracy do you expect?
--Lilla
Hi all,
I'm trying to register two brain volumes using Freesurfer. I need to find a mapping for each voxel of the MR image to the reference image. I tried using mri_register with the option -vf as the wiki documentation suggests that it outputs a vector field. Instead it expects a variance volume. The surface registrations do not work for me either, because they don't include a mapping of inner points. I tried Talairach transformation, but, it is a rigid registration, and I need a non-rigid registration.
Is there a tool in Freesurfer that can register two brain volumes with a mapping of each voxel?
Thanks,
Zeynep. _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer
Hi Zeynep,
CVS is designed for this.
cheers Bruce On Tue, 5 Jul 2011, Zeynep Akalin Acar wrote:
Hi all,
I'm trying to register two brain volumes using Freesurfer. I need to find a mapping for each voxel of the MR image to the reference image. I tried using mri_register with the option -vf as the wiki documentation suggests that it outputs a vector field. Instead it expects a variance volume. The surface registrations do not work for me either, because they don't include a mapping of inner points. I tried Talairach transformation, but, it is a rigid registration, and I need a non-rigid registration.
Is there a tool in Freesurfer that can register two brain volumes with a mapping of each voxel?
Thanks,
Zeynep.
freesurfer@nmr.mgh.harvard.edu