Hi Bruce,

The workflow that I mentioned from the wiki is for creating a new template in the absence of any ?.sphere.reg files; here's relevant language from the webpage:

----------------
"Creating a registration template from scratch (GW)

(This section reports on what I (GW) have learned of the registration process from Bruce Fischl. and Doug Greve, along with reading the source code. I have not actually tried it.)

The process of creating a template involves calculating a "mean" (across subjects) pattern of curvature-related values, along with the variance of these variables. This task is performed by program mris_make_template. However, mris_make_template expects the input subjects to be already aligned (ie: already have ?h.sphere.reg files). This of course will not be the case if you are about to create a template!"
----------------

This is context for my question.

Thanks,
David

On Tue, Sep 3, 2013 at 3:50 PM, Bruce Fischl <fischl@nmr.mgh.harvard.edu> wrote:

Hi David

usually you need a ?h.sphere.reg as the ?h.sphere files are in (arbitrary) spherical coordinates, while the ?h.sphere.reg ones are in registered ones

cheers
Bruce

On Tue, 3 Sep 2013, David Romano wrote:

Hi everyone,

If I only have lh.sphere and lh.sulc files for each of collection of
subjects, would this be enough information to generate a template for
registering further subjects?

I was thinking of trying to follow the workflow described on the page:

      https://surfer.nmr.mgh.harvard.edu/fswiki/SurfaceRegAndTemplates

(in the section titled "Creating a registration template from scratch
(GW)"), but wasn't sure whether more than just native spherical coordinates
and convexity information would be implicitly required by the
mris_make_template command. (The "Positional Arguments" table that appears
on the page:

     https://surfer.nmr.mgh.harvard.edu/fswiki/mris_make_template

only asks explicitly for references to the hemisphere data for a collection
of subjects.)

Thanks in advance for you help,
David Romano

(P.S. There's also appers to be a typo in the "Positional Arguments" table
I mentioned above: In the description section for position 2, the {hemi}
and {sphere_name} values seem to be reversed.)

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