[Insight-users] Re: ask for help on DeformableMesh3DFilter

[Luis Ibanez]

Hi Deliang,

The DeformableModel filter is quite unstable
and may not be the best options for refining
an existing segmentation.

You may want to look at the LevelSet methods
since they provide better mechanisms for
enforcing estability.

Please take a look at the LevelSet chapter
in the software guide.

  http://www.itk.org/ItkSoftwareGuide.pdf

Section 9.3, pdf-page 363.
In particular you may want to look at

  - GeodesicActiveContours
  - ThresholdLevelSet
  - CannyEdgesLevelSet

Associated examples are available under

   Insight/Examples/Segmentation




Regards,


   Luis


----------------
Deliang Ye wrote:

> Hi, Luis and Sam,
> 
> I got a rough segmentation of rat spinal cord by region growing, I would
> like to use deformable mesh filter to refine the result. But the program
> failed, and told me memory access violation. I have not changed any
> parameters in DeformableModel1.cxx  in ITK, what is the rule of thumb to set
> the parameters, such as stiffness, scale, gradient magnitude, time step, and
> step threshold in DeformableMesh3DFilter?
> 
> Please check that attached file,
> 
> Appreciate you for help!
> 
> --Deliang Ye
> 
> 
> ------------------------------------------------------------------------
>