You can just use the identity matrix. The white and pial surfaces will
be bogus (probably the inflated too), but the atlas created from it will
be valid
On 3/25/2021 11:17 AM, Trisanna Sprung-Much wrote:
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Thanks Bruce for your speedy response.
I am dealing with chimp scans and therefore am trying to avoid
anything to do with Talairach. The surfaces have reconstructed pretty
nicely using recon-all, but I’d like to create an average surface now.
I will try as you suggest
Trisanna Sprung-Much
Research Associate
McGill University
MD Anderson Cancer Centre
--
*From: *<freesurfer-boun...@nmr.mgh.harvard.edu> on behalf of "Fischl,
Bruce" <bfis...@mgh.harvard.edu>
*Reply-To: *Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
*Date: *Thursday, March 25, 2021 at 10:59 AM
*To: *Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
*Subject: *Re: [Freesurfer] make_average_subject without Talairach
transform
Sure, I guess you can just run mri_average. I think also if you
specify the file name for the transform as identity.nofile to any
binary that takes an lta file, the code will internally create an
identity transform.
I won’t look pretty though….
Cheers
Bruce
*From:*freesurfer-boun...@nmr.mgh.harvard.edu
<freesurfer-boun...@nmr.mgh.harvard.edu> *On Behalf Of *Trisanna
Sprung-Much
*Sent:* Thursday, March 25, 2021 10:19 AM
*To:* Freesurfer support list <freesurfer@nmr.mgh.harvard.edu>
*Subject:* [Freesurfer] make_average_subject without Talairach transform
* External Email - Use Caution *
* External Email - Use Caution *
Hi there
I’d like to know if it is possible to create an average volume and
average surface of several subjects without having to incorporate the
Talairach transform and no transform at all.
Thank you,
Trisanna Sprung-Much
Research Associate
McGill University
MD Anderson Cancer Centre
--
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