[Insight-users] simple registration & deformation field question

[brian avants]

see the figure on page 8 of this document
http://picsl.upenn.edu/ANTS/ants.pdf

briefly, the moving image is pulled back to the fixed image space.


brian





On Tue, Nov 6, 2012 at 1:28 PM, Tim Bhatnagar <tim.bhatnagar at gmail.com>wrote:

> Hello all,
>
> I know this is very basic, but confirmation of my suspicion would be
> appreciated:
>
> Using the ITK standard 'fixed image', 'moving image' templating that is
> present in all of the ITK examples, if I have a deformation field printing
> out from the registration process (the field is written again in the same
> fashion as in the ITK examples), it *SHOULD* be the field that when applied
> to the 'moving image', should result in the 'fixed image', correct?
>
> I'm viewing my deformation field in Paraview and it is opposite to what I
> was expecting. Additionally, the standard 'output image' written from the
> registration also shows a great transformed image (what I'm after).
>
> Am I writing/reading an inverse of the deformation field for some reason?
>
> If it helps, I am using DeformableRegistration2.cxx with some modified
> histogram parameters.
>
> Thanks,
>
>
>
> --
> Tim Bhatnagar
> PhD Candidate
> Orthopaedic Injury Biomechanics Group
> Department of Mechanical Engineering
> University of British Columbia
>
> Rm 5000 - 818 West 10th Ave.
> Vancouver, BC
> Canada
> V5Z 1M9
>
> Ph: (604) 675-8845
> Fax: (604) 675-8820
> Web: oibg.mech.ubc.ca
>
>
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