[vtkusers] How to average different meshes (from surface points)?

[Arnaud GELAS]

Can you send one image of the results please?

Arnaud


On 10/26/2009 04:44 PM, lynx.abraxas at freenet.de wrote:
> On 26/10/09 10:13:12, Arnaud GELAS wrote:
>    
>> Hi Lynx,
>>
>> In vtk, there is one filter to reconstruct surface from a set of points
>> vtkSurfaceReconstructionFilter
>>
>>      
> (http://www.vtk.org/doc/nightly/html/classvtkSurfaceReconstructionFilter.html),
>    
>> it is based on the work of Hugues Hoppe 1992. Results are not really
>> impressive but that could help.
>>      
> Thanks for the ideas Arnaud.
>
> I  tried  vtkSurfaceReconstructionFilter  and  noticed  while playing with the
> parameter SetNeighborhoodSize that the result is not so bad. The only  problem
> is  there  are some surface parts drawn that don't fit. These parts (look like
> wings) jump and change randomly depending on SetNeighborhoodSize.
> So I had the idea to create some kind of average for many  SetNeighborhoodSize
> values.  I  wonder  if  that  is  possible  by  just  adding  up the output of
> vtkSurfaceReconstructionFilter.  A  kind  of  h-minimum  filtering  might   be
> necessary before finally appling vtkContourFilter. Is this a sensible idea?
> Is there some other method implemented in itk/vtk that can average surfaces?
> Another way might be to use the points that make up the contour from different
> SetNeighborhoodSize values in a vtkGaussianSplatter and avearge those  up  and
> do a final contour.
> Is there a better way to achieve this?
>
> Thanks for any help or hints.
> Lynx
>
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