Hi Florian,
no, I am not sure what's happening here, apart from
the fact that your image is really noisy. Maybe it has
been upsampled? I can see that the resolution is
1x1x1... If this is the case, that may explain the
problem. If so, you should get the non-interpolated
original T1 image. If this hasn't been interpolated,
then Mark might be able to come up with a better
explanation when he will be back.
Cheers,
Gwenaelle
--- Florian Schubert <[log in to unmask]> a écrit
:
> Hi again Gwenaelle, and thank you.
> Sorry for bothering you, but I uploaded another data
> set with the same
> problems that has not been registered beforehand
> (120949).
> Any idea?
> Best regards,
> Florian
>
>
>
> Dr. Florian Schubert
> AG NMR-Messtechnik
> Physikalisch-Technische Bundesanstalt
> D-10587 Berlin
> +49 30 34817477
>
>
>
>
> Gwenaëlle DOUAUD
>
> <gwenaelledouaud@
>
> YAHOO.FR>
> An
> Gesendet von: FSL
> [log in to unmask]
> - FMRIB's
> Kopie
> Software Library
>
> <[log in to unmask]
> Thema
> UK> [FSL] RE :
> Re: [FSL] segmentation
>
>
>
>
> 16.01.2008 12:35
>
>
>
>
>
> Bitte antworten
>
> an
>
> FSL - FMRIB's
>
> Software Library
>
> <[log in to unmask]
>
> UK>
>
>
>
>
>
>
>
>
>
> Hi again Florian,
>
> I had a look at your dataset...
> The problem is coming from the fact that you're
> running fast after registering your T1w image to the
> standard space. The interpolation is creating some
> intermediate intensities that are messing up with
> the
> histogram and subsequently with the segmentation
> (and
> the ordering of the pve images). The best thing to
> do
> is to run bet and fast beforehand (and that's what
> fsl-vbm is doing).
>
> Hope this helps,
> Gwenaelle
>
>
> --- Florian Schubert <[log in to unmask]> a
> écrit
> :
>
> > Hi Gwenaelle,
> > thank you for this opportunity. The ref number of
> > upload of the zip file
> > 015 is 906550.
> > Regards,
> > Florian
> >
> > Dr. Florian Schubert
> > AG NMR-Messtechnik
> > Physikalisch-Technische Bundesanstalt
> > D-10587 Berlin
> > +49 30 34817477
> >
>
>
>
>
>
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