[Insight-users] help, about 3D surface interpolation

[Luis Ibanez]

Hi Kun,

Thanks for your additional information.

Are you actually using a Mesh representation for the Snake surface ?

You could consider using any of the ITK Level Sets as an implementation
of a deformable surface. In which case you will not have topological
problems.

(you will have other problems, such as parameters fine tunning :-)  )

You may consider taking a look at the Vessel extraction papers in the
Insight Journal:

For example:
    http://insight-journal.org/midas/handle.php?handle=1926/576
    http://insight-journal.org/midas/handle.php?handle=1926/558


Regards,


     Luis



------------
Kun wrote:
> Hi, Luis
> 
> Thank you for your help.
> 
> Maybe I have not described the problem clearly.
> 
> I use snake model to deform a vessel, which may turns sharply. Since the 
> snake grows, there won't  be enough voxels to make the surface(boundary) 
> closed. I think a 3D surface interpolation is necessary to do.
> 
> Thanks.
>  
>  
> 
> ÔÚ2008-05-01£¬"Luis Ibanez" <luis.ibanez at kitware.com> дµÀ£º
> 
> Hi Kun,
> 
> What is the genus of the surface that you plan to obtain ?
> 
> Is it homologous to a Sphere ?
> 
> If so, one thing you could do is to use the conformal mapping
> to a sphere, do a spherical Delaunay triangulation, and then
> map back to the original space.
> 
> It may be possible to do this by mapping to a plane, perform
> Delaunay triangulation in the plane and then mapping back to
> the original space.
> 
> You may want to take a look at the following paper in the
> Insight Journal:
> 
> http://insight-journal.org/InsightJournalManager/view_reviews.php?pubid=112
> 
> 
> The source code of this method is currently available in the
> directory:
> 
>     Insight/Code/Review/itkConformalFlatteningMeshFilter.h
> 
> 
> 
> 
>    Regards,
> 
> 
>       Luis
> 
> 
> 
> ----------------
> Kun wrote:
>> Hi,all
>> 
>> I am a new ITK user. And now I am trying to do some 3D surface 
>> interpolation with ITK. The situation is like below:
>> 
>> Suppose there is a 3D object, which contains many points(maybe 2000) on 
>> its surface Now I have known part points( suppose 1500) on the surface, 
>> so the surface should be open.
>> Then how can I do the interpolation on the surface to make it close ?
>>  
>> Is there any code in ITK to solve this problem ?
>> 
>> Would somebody  help me? Thanks a lot.
>> 
>> 
>> Best Regards.
>> 
>> Kun
>> 
>>  
>>  
>> 
>> 
>> ------------------------------------------------------------------------
>> 
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