I have attached a little function for doing this, whereby movements are all
relative to the first scan selected.
Note that the translations are in millimeters rather than voxels.
Best regards,
-John
On Tuesday 10 April 2001 14:32, Jonas Larsson wrote:
> I would like to retrieve the realignment parameters for a set of sessions
> relative to the reference scan, i.e. as specified in the
> realignement_parameters textfile. However, these parameters seem only to
> give the movement relative to the first scan in each session, rather
> than to the global reference scan. Is there a way of retrieving this
> information short of extracting it from the .mat files directly (which is
> also not really what I want, as these contain the additional
> transformations with respect to voxel dimensions)? Also, I am not sure
> whether the translation parameters in the text file refer to voxels or
> world units (i.e. millimeters)?
--
Dr John Ashburner.
Wellcome Department of Cognitive Neurology.
12 Queen Square, London WC1N 3BG, UK.
tel: +44 (0)20 78337491 or +44 (0)20 78373611 x4381
http://www.fil.ion.ucl.ac.uk/~john
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