[Insight-users] 3D Voronoi

[Richard Beare]

A watershed transform on the distance map will give you a voxel based
voronoi tesselation in which each voxel is labelled. The label tells
you what the "root" of each region. If you run a neighborhood filter
over the labelled result you can deduce which labels touch.

On Fri, Apr 22, 2011 at 12:26 AM, Maria Alejandra Zuluaga Valencia
<mariazulv at yahoo.es> wrote:
> Hi,
> I think what I am looking for might be just in between this two. I checked
> the Danielsson filter and the obtained Voronoi map is just what I want.
> However, I am under the impression that I cannot be aware of the neighbors
> of each region. Am I right? Is it possible to obtain it somehow?
>
> In the other hand, I checked the vtkDelaunay3D and, again, I do not see that
> I can have access to the neighbors of a particular point in the mesh.
>
> regards,
>
> Maria
>
> ________________________________
> De: Gaëtan Lehmann <gaetan.lehmann at jouy.inra.fr>
> Para: Maria Alejandra Zuluaga Valencia <mariazulv at yahoo.es>
> CC: ITK list <insight-users at itk.org>; Bill Lorensen
> <bill.lorensen at gmail.com>
> Enviado: jue,21 abril, 2011 15:48
> Asunto: Re: [Insight-users] 3D Voronoi
>
>
> Hi,
>
> I'm not sure which class you have used, but you can get the Voronoi
> diagram in one of the outputs of the Danielsson filter.
>
> Regards,
>
> Gaëtan
>
>
>
> Le 21 avr. 11 à 15:27, Bill Lorensen a écrit :
>
>> vtkDelaunay3D
>>
>> Here is an example:
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Modelling/Delaunay3D
>>
>> On Thu, Apr 21, 2011 at 9:11 AM, Maria Alejandra Zuluaga Valencia
>> <mariazulv at yahoo.es> wrote:
>>> Hi,
>>> I am in the need of some voronoi diagram computations in 3D and
>>> found out
>>> that ITK just does it in 2D. Any reasons for this? Any plans to
>>> make it 3D?
>>>
>>> thanks
>>>
>>> Maria A. Zuluaga
>>>
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> --
> Gaëtan Lehmann
> Biologie du Développement et de la Reproduction
> INRA de Jouy-en-Josas (France)
> tel: +33 1 34 65 29 66    fax: 01 34 65 29 09
> http://voxel.jouy.inra.fr  http://www.itk.org
> http://www.mandriva.org  http://www.bepo.fr
>
>
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>
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>