Hi FSL experts,
I would like to better understand how you perform resampling after normalization by means of fnirt.
You provide options for trilinear, sinc and bspline interpolation. However, after reaching maxima, your points/voxels in native space become a non structured grid, since non linear displacement occurs. How do you then implement interpolation and extrapolation? I am familiar with interpolation methods on standard grids, but with unstructured ones this is not the case. I am asking because I need to carefully check how new intensities are estimated.
Any clarification or hint on these aspects will be well accepted!
Best Regards,
Alessandro
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