[Insight-users] mesh creation from segmented image

[KEGANG HUA]

Hi, Luis

Which of the filter will generate triangular mesh that is suitable for deformable model? I have a mesh generated by vtkContour filter. Would that be good?

I think at least I need my mesh to be so called conforming triangular mesh, i.e. each triangle edge is shared by eaxactly two triangles. 

How could I check it in ITK or VTK?

Thanks!


----- Original Message -----
From: Luis Ibanez <luis.ibanez at kitware.com>
Date: Thursday, April 5, 2007 3:31 pm
Subject: Re: RE : Re: Re : Re : [Insight-users] mesh creation from segmented image
To: Miladi Med Amine <miladimedamine at yahoo.fr>
Cc: Insight Users <insight-users at itk.org>


>  Hi Miladi,
>  
>  Please read the ITK Software Guide:
>  
>      
>  
>  You will find examples on how to read multiple 2D
>  slice files into a single 3D image in section 7.11.1
>  "Reading Image Series" in pdf-page 319.
>  
>  The source code example can be found in
>  
>     Insight/Examples/IO/ImageSeriesReadWrite.cxx
>  
>  
>  
>  For an example on how to use the VTK marching
>  cubes on an ITK image, please look at:
>  
>  
>     InsightApplications/Auxiliary/vtk/
>         itkReadITKImage3DSegmentShowVTK.cxx
>  
>  It shows how to convert an ITK image into vtkImageData
>  and then pass it to the vtkContour filter.
>  
>  
>       Regards,
>  
>  
>          Luis
>  
>  
>  
>  -------------------------
>  Miladi Med Amine wrote:
>  > Hi,
>  > thanks you for help.
>  > can you let me how get the 3d binary image from slices.
>  > Now i m thinking about marching cube marching cube algorithme using 
> 
>  > vtkImageMarchingCubes,so can you if you knew ho to use this filter 
> and 
>  > can it get segmented slices as my exemple.
>  > thanks
>  > 
>  > */Luis Ibanez <luis.ibanez at kitware.com>/* a écrit :
>  > 
>  > 
>  >     Hi Miladi,
>  > 
>  >     Thanks for sending your example images.
>  > 
>  >     Given that you already have segmentations for
>  >     each slice, the easy way to generate a contour
>  >     is to take the 3D binary image that you have
>  >     and to pass it to the filter:
>  > 
>  >     
>  > 
>  >     This filter will produce an itkMesh that is the
>  >     contour of the segmentation.
>  > 
>  >     This is interesting if you plan to do something
>  >     like Deformable Models.
>  > 
>  > 
>  >     Note that if your purpose is to do visualization
>  >     of the contour, then you will find more useful
>  >     to convert the ITK image of the segmentation into
>  >     a VTK image, and then pass it to the vtkContour filter.
>  > 
>  >     You will find examples on how to do this in the
>  >     directory:
>  > 
>  >     InsightApplications/Auxiliary/vtk/
>  >     itkReadITKImage3DSegmentShowVTK.cxx
>  > 
>  > 
>  > 
>  >     Regards,
>  > 
>  > 
>  >     Luis
>  > 
>  > 
>  > 
>  >     -------------------------
>  >     Miladi Med Amine wrote:
>  >      > Hi Luis;
>  >      > my question is what is the way to create a mesh of endocade 
> for
>  >      > exemple.i have a series of image as the exemple sended to you
>  >      > representing the object.
>  >      > and i would like to get some point the contour for each image,and
>  >     create
>  >      > the mesh.
>  >      > There's a way in itk to do that.
>  >      >
>  >      > Thanks
>  >      > MILADI
>  >      >
>  >      > ----- Message d'origine ----
>  >      > De : Luis Ibanez
>  >      > À : Miladi Med Amine
>  >      > Envoyé le : Mardi, 27 Mars 2007, 16h30mn 16s
>  >      > Objet : Re: Re : [Insight-users] mesh creation from 
> segmented image
>  >      >
>  >      > Hi Miladi,
>  >      >
>  >      >
>  >      > What is your question ?
>  >      >
>  >      >
>  >      > Thanks
>  >      >
>  >      >
>  >      > Luis
>  >      >
>  >      >
>  >      > ------------------------
>  >      > Miladi Med Amine wrote:
>  >      > >
>  >      > > hi;
>  >      > > I would like to help me more.
>  >      > > So i have a series of segmented image of endocade,and my
>  >     objectif is to
>  >      > > create a mesh to modelise the endocade using itk.
>  >      > > thanks
>  >      > > ----- Message d'origine ----
>  >      > > De : Luis Ibanez
>  >      > > À : medamine
>  >      > > Cc : insight-users at itk.org
>  >      > > Envoyé le : Lundi, 26 Mars 2007, 0h45mn 37s
>  >      > > Objet : Re: [Insight-users] mesh creation from segmented image
>  >      > >
>  >      > > Hi Medamine,
>  >      > >
>  >      > > You may want to look at this filter:
>  >      > >
>  >      > >
>  >      >
>  >     
>  >      > >
>  >      > >
>  >      > > Regards,
>  >      > >
>  >      > >
>  >      > > Luis
>  >      > >
>  >      > >
>  >      > >
>  >      > > --------------------
>  >      > > medamine wrote:
>  >      > > > hi .
>  >      > > > i would like to create a mesh from a segmented
>  >     image(endocade),and i m
>  >      > > > thinking about using snake to get cordonates of "contour".
>  >      > > > my question there's a methode to do that using itk?
>  >      > > > thanks for all.
>  >      > >
>  >      > >
>  >      > >
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