[MINC-users] Blurring a 4D minc volume?

[EJ Nikelski]

Hi All,

   I seem to have hit a wall, and need some suggestions.  I have a 4D
volume (time * z * y * x) which I need to blur. No problem, I think.
So, I do the following:

(1) mincreshape to split the 4D volume into a series of 3D volumes
(2) mincblur each separately
(3) mincconcat to slap it all together again

Here's the problem: mincreshape actually produces a 4D volume with
"time" the slowest varying dimension and equal to 1.  This is
precisely what I want, since this preserves my time data (eg, time
start, time-width).  This is important, since my times are *not*
fixed.  mincblur then comes along and, more or less, corrupts the
volume in that the time dimension is still in the header -- but it's
now as the fastest varying dimension, and all of its variable info has
been removed.  At this point, the mincconcat stage is pointless, in
that I have now lost my time info.

What's the best way to get around this, while retaining my "irregular"
time information? Suggestions? Ideas?


-Jim

-- 
=================================
Jim Nikelski, Ph.D.
Postdoctoral Research Fellow
Bloomfield Centre for Research in Aging
Lady Davis Institute for Medical Research
Sir Mortimer B. Davis - Jewish General Hospital
McGill University