[Insight-users] how to extract a surface from a binary volume data

[Vincent Daanen]

Hi,

I did this in the past with a filled binary volume and the computation 
time was prohibitive !
So, if your volume is filled, you should get the 'border' voxels (with a 
binary dilation followed by a substraction by example) and then use the 
marching cube algo to extract the surface.

 V

Tao, Xiaodong (GE, Research) a écrit :
> Songyuan,
>  
> I assume you are using itk for image IO. So first you need an itk::ImageToVTKImageFilter to connnect the itk world to the vtk world, then you can use vtkImageMarchingCubes to extract a surface at a given iso-value.
>  
> Xiaodong
>
> 	-----Original Message----- 
> 	From: insight-users-bounces+taox=research.ge.com at itk.org on behalf of Tang Songyuan 
> 	Sent: Tue 5/2/2006 6:43 AM 
> 	To: insight-users at itk.org 
> 	Cc: 
> 	Subject: [Insight-users] how to extract a surface from a binary volume data
> 	
> 	
>
> 	Hi, I have a binary volume data. I want to extract the
> 	surface of the volume. How can I do it. Thanks
> 	
> 	Songyuan
> 	
> 	
> 	               
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-- 
Vincent Daanen, PhD
Research Engineer, Post-Doctoral Position
Laboratoire TIMC/IMAG (Univ. Joseph Fourier - CNRS UMR 5525)
Equipe GMCAO
Institut d'Ingénierie de l'Information de Santé (IN3S)
Faculté de Médecine - 38706 La Tronche cedex - France
Tel: +33 (0)4 56 52 00 54 - Fax: +33 (0)4 56 52 00 55
Vincent.Daanen at imag.fr

"Les problèmes ne peuvent être résolus par
ceux dont l'horizon se limite aux réalités 
quotidiennes, mais par ceux qui rêvent de 
choses qui n'ont jamais existées et qui se 
disent : Pourquoi Pas ?"

J-F Kennedy, 1963.