[ITK-users] Question about LandmarkDisplacementFieldSource
Matt McCormick
matt.mccormick at kitware.com
Tue Aug 29 15:26:12 EDT 2017
Hi Siming,
To find the references, see the documentation for the KernelSplines:
https://itk.org/Doxygen/html/classitk_1_1KernelTransform.html
The Inheritance Diagram has links to specific splines and they also
have references.
If dealing with two point sets, you may also be interested in the
LandmarkBasedTransformInitializer:
https://itk.org/Doxygen/html/classitk_1_1LandmarkBasedTransformInitializer.html
Hope this helps,
Matt
On Tue, Aug 29, 2017 at 12:09 PM, Siming Bayer <siming.bayer at gmail.com> wrote:
> Dear all,
>
> I am trying to use LandmarkDisplacementFieldSource to compute a displacement
> field from 2 point sets. Although the 2 point sets are aligned almost
> perfectly with thin plate spline - Robust point matching algorithm
> (TPS-RPM), the resulting displacement field looks simply wrong. For example,
> the displacement field has a high value where I don´t expect any
> deformation/displacement.
>
> Does anybody knows the mathematical background of the itk implementation of
> LandmarkDisplacementFieldSource? Could anybody tell me the paper? Does any
> body knows how many landmarks is meaningful?
>
> best,
> Siming
>
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