[Insight-users] simple registration & deformation field question

[brian avants]

also figure 4


brian





On Wed, Nov 7, 2012 at 1:18 PM, brian avants <stnava at gmail.com> wrote:

> 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
>
>
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>
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> 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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