I'm not sure what you mean. When the sphere.reg is registered across
subjects, it is sufficient to register the wm surfaces.
doug
Matt Glasser wrote:
Hi,
I am wondering if there is a way to apply the default surface based
registration that is done during recon-all to surfaces other
Hi Doug,
Thanks for your response. How does one go about getting registered white
matter surfaces then? I would like all of the surfaces to be registered so
that they have the same number of nodes in the same places across subjects.
Thanks,
Matt.
-Original Message-
From: Douglas N
Oh, that's not such an easy thing to do. We can only map values from one
subject to another. I know what you are describing, and it would be nice
to have. I'm not sure how possible it is as the density of the nodes
changes from subject to subject at various locations in order to reflect
the
Hi Matt,
you could use mri_surf2surf to map the fsaverage surface to any subject.
We always avoid doing this as we want uniform sampling in the subject's
space, and were willing to make the engineering more difficult to preserve
this.
cheers
Bruce
On Tue, 2 Mar 2010, Douglas N Greve wrote:
Hi Doug and Bruce,
I am somewhat surprised by your responses, given that we do what I need done
with Caret all the time. I wonder if I am not explaining myself clearly or
not understanding your responses (Donna, perhaps you can help?). In Caret,
one does a landmark-based registration of the
Matt,
I think we just do things differently. We adopted Ziad Saad's concept
of a standard mesh. (Before Ziad conceived it, we didn't do this,
either.) But not everyone does this. My mental model of how others do
things is poor. I recall using mrisp_paint to get some scalars on our
PALS
Thanks Donna for the explanation of my confusion.
I am wondering if there is any way I could make use of the Freesurfer
registration and then get things into Caret where I could do what I want?
For example, is there any way, given a registered and unregistered sphere of
a given subject that we
Hi Matt,
I think that is all doable using mri_vol2surf, mri_surf2surf and
mri_surf2vol. The deformation fields all live on the surface of the sphere,
so there is no volumetric deformation to apply. It's also all subject to
atlas. You could pick an individual subject and compose forward and
