[ITK] Anchored landmarks with thin plate spline

[Bradley Lowekamp]

Matt,

	The Doxygen for LandmarkBasedTransformInitializer says it works with: "VersorRigid3DTransform Rigid2DTransform AffineTransform BSplineTransform". Does it a work with the ThinPlateSplineKernelTransform too? Is there an example test or application which does this?

Brad

On Jul 30, 2015, at 12:52 PM, Matt McCormick <matt.mccormick at kitware.com> wrote:

> Hi Ken,
> 
> I talked with Karthik, an author on that paper.  He said that the code
> referenced here:
> 
>  http://public.kitware.com/pipermail/insight-developers/2005-May/006632.html
> 
> is available in this class:
> 
>  http://www.itk.org/Doxygen/html/classitk_1_1LandmarkBasedTransformInitializer.html
> 
> There are some unit tests that exercise it.
> 
> 
> There are also some 3D Slicer modules that use it:
> 
> https://www.slicer.org/slicerWiki/index.php/Documentation/4.4/Modules/LandmarkRegistration
> Select landmarks and the Rigid option in the module followed by
> warping, landmark placement again on rigidly aligned image pairs and
> the TPS option in the module, with landmarks placed on the prostate
> periphery and several coincident anchors around it.
> 
> and
> 
> https://www.slicer.org/slicerWiki/index.php/Documentation/4.4/Modules/PlmLANDWARP
> Place landmarks on the periphery of the prostate and use the RBF with
> locality radius that is half the diameter of the prostate.
> 
> 
> HTH,
> Matt
> 
> On Mon, Jul 27, 2015 at 7:41 PM, Ken Sutherland
> <kensuth at med.hokudai.ac.jp> wrote:
>> I've been trying to figure out how to "anchor" landmark points with the
>> ThinPlateSplineWarp example.
>> 
>> According to "Interactive Deformation Registration of Endorectal Prostate
>> MRI Using ITK Thin Plate Splines", they did it with a method described in
>> "Closed-form solution of absolute orientation using unit quaternions". But
>> the description is a little too mathematical for me to comprehend. They say
>> that they posted their source code at
>> "http://www.kitware.com/pub/ProstateRegistration.", but that link seems to
>> be dead.
>> 
>> Does anyone have this code they would be willing to share?
>> 
>> Thanks!
>> 
>> --
>> Ken Sutherland
>> Hokkaido University
>> Graduate School of Medicine
>> Department of Medical Physics
>> kensuth at med.hokudai.ac.jp
>> 
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