[vtkusers] Landmark Transform + ICP

[David Doria]

On Mon, Jun 3, 2013 at 3:08 AM, Massinissa Bandou
<Massinissa.Bandou at usherbrooke.ca> wrote:
> Hello everyone,
>
> I tried to perform a surface registration with 3 Landmarks from the source
> (white) and 3 others in the target image (Brown). It gave me a pretty rough
> transformation (green)! I'm using a rigid transformation.
>
> <http://vtk.1045678.n5.nabble.com/file/n5721129/LandmarkTransform.png>
>
> So I decided to add the Iterative closest points (ICP) on the previous
> result (green) as a source and the target image(brown) and It seems working.
> Why I can't get this result only by vtkLandmarkTransform???
>
> <http://vtk.1045678.n5.nabble.com/file/n5721129/LandmarkTransform_ICP.png>

Can you show us (perhaps overlay red/green/blue spheres or something
like that) the landmarks you are using on each object? If the
landmarks are good/actually correspond, there is no reason the result
wouldn't be more like the second image.

David