the norm is the output of the subcortical intensity (nonuniformity)
correction detailed in the 2002 paper
On Thu, 11 Jan 2018, Aaron Tanenbaum
wrote:
I would like to get a clarification on what some the the files generated by
FreeSurfer recon-all
based on the URL https://surfer.nmr.mgh.harvard.edu/fswiki/ReconAllOutputFiles
The web pages says the nu.mgz "This is a intensity normalized volume generated
after correcting for
non-uniformity in the orig.mgz". I just need a clarification the intensity
normalized is just a
global scaling and the correction for non-uniformity is the bias field
correction. I was wondering
if the orig.mgz is bias field corrected to generate the orig_nu.mgz and the
intensity normalized to
generate the nu.mgz.
Finally what is the norm.mgz image. I cannot final details on how it is created.
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