Stephen,
interesting observation, to which I only want to add on another
question: my understanding is that it is "helpful" (as you say) to pick
the origin, but it is not critical if you are a few mm off. This is not
to advocate slopppiness, but I keep on getting back reviewer's comments
on intra-class correlation and the exact training the person had in
picking the origin etc., and I wonder if this is really relevant as long
as you are in the right vicinity.
Sorry for tagging on to somebody else's question, but it was too
tempting :)
Marko
> This entailed a "gross" yaw of 90deg, some finer rotation among
> any of the axes (whatever was necessary), and choosing the
> origin.
> She finds that, while the 90deg rotation is mandatory and picking
> the origin is useful, the finer rotations actually make the quality
> of the ensuing normalization worse. Is this possible, and if so,
> why?
--
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Marko Wilke, MD
Research Fellow, Imaging Research Center
Children's Hospital Research Foundation
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