Dear Douglas,
I've been looking a that page for a while now and I am very confused...
Are you referring to this example?
2. I have an RAS point on the surface (tkrR tkrA tkrS) ("Vertex RAS" from tksurfer) and want to compute the MNI305 RAS that corresponds to this point:
MNI305RAS = TalXFM*Norig*inv(Torig)*[tkrR tkrA tkrS 1]'
TalXFM: subject/orig/transforms/talairach.xfm Norig: mri_info --vox2ras orig.mgz Torig: mri_info --vox2ras-tkr orig.mgz
So, is it the case that I just do the equation like this:
[tkrR tkrA tkrS 1]' = [X Y Z (in MNIspace)] / TalXFM*Norig*inv(Torig)
Thank you,
ines
On Fri, Dec 11, 2015 at 4:12 PM, Douglas Greve greve@nmr.mgh.harvard.edu wrote:
See if this helps
https://surfer.nmr.mgh.harvard.edu/fswiki/CoordinateSystems
On 12/11/15 10:23 AM, Inês Violante wrote:
Dear experts,
I have a set of Talairach coordinates that I want to convert to the individual subject surf RAS coordinates. How can I do this?
Thank you very much.
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