Hi,
It is actually a lot simpler to use the -mats option to
output all the transformation matrices. You can then
apply these matrices directly with flirt (or their inverses)
to generate the same changes in other images.
It is also possible to do via the parameters, but you
need to get all of the coordinate conventions absolutely
right, which is not that easy. I definitely recommend
using the matrices instead.
All the best,
Mark
On 9 Jun 2009, at 09:23, Maarten Versluis wrote:
> Dear all,
>
> I am using the mcflirt tool to register an fMRI dataset, and I would
> like to
> use the rotation and translation parameters to simulate the movement
> of the
> subjects in another program. I've set the plots keyword, to get
> a .par file.
> I'm not sure how to interpret the resulting file, I'm guessing the
> first 3
> columns are for rotation and the last 3 columns for translation. But
> what
> are the units and what are the orientations?
>
> Many thanks in advance for help on this subject.
>
> Best regards,
>
> Maarten Versluis
>
|