Hi,
You can set up FDT to run non-linear registration but you need to set it up correctly by specifying the "Non-betted structural". The GUI works a little differently from the FEAT GUI, in case you are more familiar with that.
If you have set it up correctly then you should have images (that contain the non-linear transformation) with _warp in their name. These can then be used with applywarp to resample images/ROIs/masks from the MNI space to either the structural or diffusion spaces.
All the best,
Mark
On 15 Mar 2013, at 15:31, Ran Xu <[log in to unmask]> wrote:
> Dear FSL experts,
>
> I have two ROIs in MNI space, one is the seed mask and the other is the target. I can get the matrix from MNI to DTI space by using the registration tool in FDT. Is this matrix from nonlinear or linear registration? All I can see is 12 DOF between MNI and DTI, does that mean it only do the affine transformation?
> If I wanna give the nonlinear registration between MNI and DTI, so can the registation tool do that and what should I do?
>
> Thanks.
>
> Ran
>
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