[Insight-users] MultiRez - Level Set

Luis Ibanez luis.ibanez at kitware.com
Sun Aug 17 13:44:32 EDT 2008

Hi Gopalakrishnan

You may want to give it a try to the new two examples:


They were kindly contributed by Vidya Rajagopalan, from the
Bioimaging Systems Lab, Virginia Tech.

These examples will show you how to properly use the code.

         You will find these examples in ITK 3.8.

Please let us know if you find any problems,



Gopalakrishnan, Girish (GE, Research) wrote:
> I was trying to run the LevelSet registration using the Multi-Rez PDE 
> deformable registration. Since the formulation of Demons and Level Set 
> filters look very similar in ITK, I was expecting it to go through. But 
> the code does not go past the coarse level.
> Found the following bug that was raised in 2006: 
> _http://www.vtk.org/Bug/view.php?id=4002_
> Does anyone know if this was resolved. Thanks, Girish
> //snip
> The LevelSetMotionRegistrationFunction generates an error if a 
> MultiResolutionPDEDeformableRegistration is used with a 
> LevelSetMotionRegistrationFilter. This is because the 
> m_MovingImageSmoothingFilter in
> template <class TFixedImage, class TMovingImage,
> class TDeformationField>
> void LevelSetMotionRegistrationFunction<
> TFixedImage,TMovingImage,TDeformationField>
> ::InitializeIteration()
> does not get updated correctly in the transition from coarse to fine 
> resolution. As a result, the multiresolution registration with the 
> levelset filter works fine at the coarsest resolution and crashes 
> erratically at higher resolutions.
> //snip
> ------------------------------------------------------------------------
> _______________________________________________
> Insight-users mailing list
> Insight-users at itk.org
> http://www.itk.org/mailman/listinfo/insight-users

More information about the Insight-users mailing list