Hi,
You will have to modify the translation values in the matrix
file to keep the COV aligned.
This is explained in the FSL FAQ:
http://www.fmrib.ox.ac.uk/fslfaq/#flirt_resample
All the best,
Mark
On 11 Nov 2004, at 22:01, Brad Buchsbaum wrote:
> I'm using Flirt to align a low resolution EPI image --> high resolution
> anatomical --> standard brain (avg152_brain)
>
> all three of these images have a different field of view. When Flirt
> resamples images, the default is to use the FOV of the reference image.
>
> In my case, I want to retain the FOV of the EPI(64X64X24,
> 3.75X3.75X3.75).
> There is an option for Flirt to use a different reference image for
> reslicing, but if this image has a larger FOV than the original
> reference
> image, the resulting resliced images are off-center (presumably because
> the origin is taken as the upper-left voxel). Is there a way for Flirt
> to
> reslice so that the origin is taken as the center voxel for both the
> input
> and reference images?
>
> thanks,
>
> Brad Buchsbaum
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