[MINC-users] time and time-width dimension in dynamic image

[Robert VINCENT]

Hi,

mincconcat is the easiest way to add irregular dimension information
back into a set of 3D files.  It is also possible to keep the time and
time-width information by simply reducing the time dimension to length
one:

mincreshape -dimrange time=0,1 infile.mnc outfile.mnc

When you concatenate these files, they should automatically recover the
irregular spacing information, since each file will retain its original
time start and width.

	-bert

On Fri, 21 Oct 2005, Sylvain MILOT wrote:

>
> Hmmm, I think there might be a way to do this with mincconcat
>
> but I've never tried it, see mincconcat -help
>
> ...
>
> -coordlist:            Specify the dimension coordinates ("<c1>,<c2>,...").
> -widthlist:            Specify the dimension widths ("<w1>,<w2>,...").
>
> ...
>
> Sylvain
>
> On Fri, 21 Oct 2005, Sylvain MILOT wrote:
>
> >
> > Yes this is fine for attributes but how do you do this for variables ?
> >
> > time and time-width are extracted with :
> >
> > mincinfo -varvalue time dynamic.mnc
> > mincinfo -varvalue time-width dynamic.mnc
> >
> > How do you do this with minc_modify_header ?
> >
> > Sylvain
> >
> >
> > On Fri, 21 Oct 2005, Jonathan HARLAP wrote:
> >
> > > alternately (without the ambiguity of $MERGE) something on the order of...
> > >
> > > if X is an attribute in a minc header...
> > > minc_modify_header -sinsert "X=`mincinfo -quiet -attvar X original.mnc`" realigned.mnc
> > >
> > > would be an inefficient but simple way to do it...
> > >
> > > cheers,
> > > j
> > >
> > > On Fri, Oct 21, 2005 at 01:07:00PM -0400, Sylvain MILOT wrote:
> > > >
> > > > Hello Oliver,
> > > >
> > > > I'm not sure this will help but here are some thoughts for a
> > > > quick hack:
> > > >
> > > > The quickest way would be to use mincedit of course or something like
> > > > the following:
> > > >
> > > > ncdump -v 'time,time-width' original.mnc > time.cdl
> > > > mincheader realigned.mnc > realigned.cdl
> > > > $MERGE time.cdl realigned.cdl > new.cdl
> > > > ncgen -o new.mnc new.cdl
> > > > minccopy realigned.mnc new.mnc
> > > >
> > > > $MERGE is the unknown and could hinder the "quick" hack!
> > > >
> > > > Sylvain
> > > >
> > > >
> > > > On Thu, 20 Oct 2005, Oliver Winz wrote:
> > > >
> > > > > Hi,
> > > > >
> > > > > i have a problem with the "time" and "time-width" dimensions in a
> > > > > dynamic PET image. After converting ECAT PET to MINC (ecattominc) i get
> > > > > the correct values about both dimensions. When i splitting the dynamic
> > > > > image into single frame images, e.g. for realignment, and afterwards
> > > > > concat the single frames together to a new dynamic, the previous
> > > > > information is lost. How can i easy modifiy (at best command line) the
> > > > > mincheader and change the values for "time" and "time-width".
> > > > >
> > > > > Thanks!
> > > > >
> > > > > Oliver
> > > > >
> > > > > --
> > > > > Oliver Winz, M.Sc.
> > > > > Molecular Neuroimaging Group
> > > > > Institute of Medicine (IME)
> > > > > Research Centre Juelich
> > > > > D-52425 Juelich
> > > > > Germany
> > > > >
> > > > > Phone: +49 2461 61-6493
> > > > > Web: http://www.fz-juelich.de/ime/mni
> > > > > Location: Building 15.9, Room 3010
> > > > >
> > > > > _______________________________________________
> > > > > MINC-users at bic.mni.mcgill.ca
> > > > > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
> > > > >
> > > >
> > > > ---
> > > > Sylvain Milot (sylvain at bic.mni.mcgill.ca)
> > > >               (trinity at bic.mni.mcgill.ca)
> > > > Brain Imaging Centre
> > > > Montreal Neurological Institute
> > > > Webster 2B, Room 208
> > > > Montreal, Qc., Canada, H3A 2B4
> > > > Phone  : (514) 398-4965, Fax: 398-8948
> > > > Mobile : (514) 712-1768
> > > > Office : 527 Av Des Pins O., Room 204
> > > >          Montreal, Qc., H2W 1S4
> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > MINC-users at bic.mni.mcgill.ca
> > > > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
> > > _______________________________________________
> > > MINC-users at bic.mni.mcgill.ca
> > > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
> > >
> >
> > ---
> > Sylvain Milot (sylvain at bic.mni.mcgill.ca)
> >               (trinity at bic.mni.mcgill.ca)
> > Brain Imaging Centre
> > Montreal Neurological Institute
> > Webster 2B, Room 208
> > Montreal, Qc., Canada, H3A 2B4
> > Phone  : (514) 398-4965, Fax: 398-8948
> > Mobile : (514) 712-1768
> > Office : 527 Av Des Pins O., Room 204
> >          Montreal, Qc., H2W 1S4
> >
> >
> > _______________________________________________
> > MINC-users at bic.mni.mcgill.ca
> > http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
> >
>
> ---
> Sylvain Milot (sylvain at bic.mni.mcgill.ca)
>               (trinity at bic.mni.mcgill.ca)
> Brain Imaging Centre
> Montreal Neurological Institute
> Webster 2B, Room 208
> Montreal, Qc., Canada, H3A 2B4
> Phone  : (514) 398-4965, Fax: 398-8948
> Mobile : (514) 712-1768
> Office : 527 Av Des Pins O., Room 204
>          Montreal, Qc., H2W 1S4
>
>
> _______________________________________________
> MINC-users at bic.mni.mcgill.ca
> http://www.bic.mni.mcgill.ca/mailman/listinfo/minc-users
>