[ITK] Anchored landmarks with thin plate spline

[Ken Sutherland]

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