[Insight-users] R: SNAKES in ITK

[edoardo.belletti at alice.it]

Can I implement a snake with itkDeformableMesh3DFilter, because I tried to use the example: Examples/Segmentation/DeformableModel1.cxx to implement a snake with 2D images but I have an error at this line:

deformableModelFilter->SetGradient( gradientMapFilter->GetOutput() );

[100%] Building CXX object CMakeFiles/Lumen.dir/Lumen.cxx.o
/home/edoardo/ITK/Tesi/02_Lumen_identification/src/Lumen.cxx: In function ‘int main(int, char**)’:
/home/edoardo/ITK/Tesi/02_Lumen_identification/src/Lumen.cxx:668: error: no matching function for call to ‘itk::DeformableMesh3DFilter<itk::Mesh<double, 2u, itk::DefaultStaticMeshTraits<double, 2u, 2u, float, float, double> >, itk::Mesh<double, 2u, itk::DefaultStaticMeshTraits<double, 2u, 2u, float, float, double> > >::SetGradient(itk::Image<itk::CovariantVector<double, 2u>, 2u>*)’
/usr/local/include/InsightToolkit/Algorithms/itkDeformableMesh3DFilter.h:139: note: candidates are: void itk::DeformableMesh3DFilter<TInputMesh, TOutputMesh>::SetGradient(typename itk::Image<itk::CovariantVector<typename TInputMesh::PixelType, 3u>, 3u>::Pointer) [with TInputMesh = itk::Mesh<double, 2u, itk::DefaultStaticMeshTraits<double, 2u, 2u, float, float, double> >, TOutputMesh = itk::Mesh<double, 2u, itk::DefaultStaticMeshTraits<double, 2u, 2u, float, float, double> >]
make[2]: *** [CMakeFiles/Lumen.dir/Lumen.cxx.o] Errore 1
make[1]: *** [CMakeFiles/Lumen.dir/all] Errore 2
make: *** [all] Errore 2


Is it possible to use this library (itkDeformableMesh3DFilter) with 2D images.

Thank you very much for the interest 
sorry form my ignorance
Edoardo 

-----Messaggio originale-----
Da: John Galeotti [mailto:jgaleotti at cmu.edu]
Inviato: sab 24/04/2010 17.02
A: edoardo.belletti at alice.it
Cc: ITK_forum  
Oggetto: Re: [Insight-users] SNAKES in ITK
 
People often use level sets to implicitly represent snakes (active  
contours).  Level-set segmentation methods are covered in the ITK  
Software Guide.

If, on the other hand, you want to explicitly create and modify a  
snake, you may also be interested in ITK's built-in path  
functionality, which is probably best documented at http://www.insight-journal.org/browse/publication/32 
.

-John Galeotti


On Apr 24, 2010, at 7:01 AM, <edoardo.belletti at alice.it> <edoardo.belletti at alice.it 
 > wrote:

> Hi
> I am looking to use ITK to implement a snake to make a deformable  
> model segmentation algorithm.
> I whant to know how are the snakes that are implemeted in ITK, and  
> where can I find some documentation about that.
>
> Please excuse my ignorance.
> Thank you in advance,
> Edoardo
>
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