[Insight-users] [ITK Community] ITKV4 combine affine transform with displacement field to output displacement field
Emma Saunders
emmasaunders123 at gmail.com
Wed Jan 29 05:56:10 EST 2014
Hi Matt, thanks for your help.
To do this I must therefore load my displacement field as a transform and
use
CompositeTransform->AddTransform(affine);
CompositeTransform->AddTransform(DisplacementFieldTransform);
How can I then write this out as a deformation field?
Would you then suggest using #include
"itkTransformToDisplacementFieldSource.h" ?
Thanks
Emma
On Tue, Jan 28, 2014 at 8:11 PM, Matt McCormick
<matt.mccormick at kitware.com>wrote:
> Hi Emma,
>
> In ITKv4, there is a much nicer way of doing this with the
> CompositeTransform [1]. Load the AffineTransform and
> DisplacementFieldTransform and add them to a CompositeTransform with
> AddTransform() [2].
>
> Hope this helps,
> Matt
>
> [1] http://www.itk.org/Doxygen/html/classitk_1_1CompositeTransform.html
> [2]
> http://www.itk.org/Doxygen/html/classitk_1_1MultiTransform.html#a698cf2434061a797bca49ed32a46cab9
>
> On Tue, Jan 28, 2014 at 3:02 PM, Emma Saunders
> <emmasaunders123 at gmail.com> wrote:
> > Hi all,
> >
> > I have an affine transform as a .txt file and a deformation field as
> .mha.
> > I would like to find a composite transform of each.
> >
> > At the moment I convert the affine to a deformation field using
> > "itkTransformToDisplacementFieldSource.h"
> >
> > and then compose it with the displacement field using:
> >
> > "itkComposeDisplacementFieldsImageFilter.h"
> >
> > Is there a more succinct way to do this in the new framework>
> >
> > Many thanks
> >
> > Emma
> >
> >
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