[Insight-users] Landmark Fitting

[Xenios Papademetris]

Hi,

We are in the process of implementing a point-based registration scheme 
(both rigid/non-rigid) in ITK. Is there any class that allows one to fit 
a transformation using a set of corresponding landmarks (as 
vtkLandmarkTransform in VTK).

If not and assuming that one is interested in doing this for both rigid 
and non-rigid transformations (we have code to do this outside of ITK) 
does anybody have any suggestions as to where in the ITK hierarchy such 
a class would fit.

(In our current implementation we use (i) For our BSpline Transformation 
mode we initialize using an ad-hoc method and then to do steepest 
descent optimization until the distance between the landmarks is 
minimized. We use vtkLandmarkTransform for the linear stuff)

Thanks

Xenios
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Xenios Papademetris		     papad@noodle.med.yale.edu
Associate Research Scientist         http://noodle.med.yale.edu/~papad
Image Processing and Analysis Group, Yale University
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