Hi John,
If I can clarify - Steven is a student working with me.
The challenge is that we don't want to co-register the other scans to the one used to build the Dartel template, because in this particular case we want to avoid any unnecessary interpolation.
Say scan A is used to build the Dartel template, and scan B is acquired in the same subject. We now want to bring scan B to the template space as well, but without first interpolating to the space of scan A, because that would deteriorate our data too much. So we're looking for a way to combine an affine transform (from scan B to scan A) with the deformation field (from scan A to the template). How could we do that?
Many thanks!
Hugo Vrenken
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