Hi Silvia,
How did you get your data into Nifti format? For example, if you used
'dcm2nii', the qform should reflect the transform into the physical
space of the gradient axes, which it sounds like is what you want.
cheers,
-MH
On Tue, 2012-02-07 at 12:47 +0000, Silvia De Santis wrote:
> Hi,
>
>
> We had motion capture cameras installed lately on our 3T and I would
> like to use the recorded motion to correct my data. I am experiencing
> two issues:
> 1) I need the "absolute" scanner origin of coordinates, but if I use
> FSLHD both the qform and sform are centered at the centre of the FOV
> rather than in some "real space" and this is an issue because I need
> all the data to be expressed in a common scanner reference frame
> 2) When I translate the rotations recorded with the motion capture
> cameras, I need to express them with respect to the lowest left corner
> of the FOV to be compatible with APPLYXFM, right?
>
>
> Does anyone have some insights?
> Many thanks!
>
>
> Silvia
>
>
>
> *****************************************************
> Silvia De Santis
> CUBRIC
> School of Psychology
> Cardiff University
> Tel: 029 2087 0354
> Fax: 029 2087 0339
> Web: http://psych.cf.ac.uk/cubric/people/ras.html
>
>
> *****************************************************
>
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