no, the smoothing is done irrespective of the intensity volume (in mris_smooth). The smoothness constraints in mris_make_surfaces are more sophisticated (they assume that the surfaces are well-fit by quadratic patches, not planes) and also move the surface to lie at large intensity gradients

On Wed, 4 Sep 2013, David Romano wrote:

Thanks, Doug; this helps me to formulate my second question better, which
is:

2) Assuming that no change in intensity is necessary, would the files
lh.white, lh.area, and lh.curv produced by the mri_make_surfaces command (in
the -white subsection of the -autorecon2 section) be the same as the files
produced by the command

  mri_smooth lh.orig lh.white?

(Note that I dropped the flag -nw, so this will produce lh.area and lh.curv
files.)


Thanks again,
David



On Wed, Sep 4, 2013 at 4:10 PM, Douglas N Greve <greve@nmr.mgh.harvard.edu>
wrote:

      lh.orig.nofix is the original tesselation without anything done
      to it.
      To get to lh.white, the defects are automatically corrected to
      create
      lh.orig. lh.orig is then refined with smoothness and intensity
      constraints to produce lh.white
      doug


      On 09/04/2013 07:07 PM, David Romano wrote:
      > Hi everyone,
      >
      > I've been trying to go through the various steps described on
      the page:
      >
      > http://surfer.nmr.mgh.harvard.edu/fswiki/ReconAllDevTable
      >
      > and I'm trying to understand part of the -autorecon2 section,
      and in
      > particular,
      >
      > 1) how the lh.orig.nofix file that is produced by the end of
      the
      > -tessellate subsection is different from the the lh.white file
      that is
      > produced by the -white subsection, and
      >
      > 2) whether the area and curvature files produced by the
      command
      >
      >
      >
      >
      >
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--
Douglas N. Greve, Ph.D.
MGH-NMR Center
greve@nmr.mgh.harvard.edu
Phone Number: 617-724-2358
Fax: 617-726-7422

Bugs: surfer.nmr.mgh.harvard.edu/fswiki/BugReporting
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