[vtkusers] Re: computing Crest Lines

[Luis Ibanez]

Hi Sami,

Did you extracted that polydata from an 3D image ?

If so, you may find easier to compute the Crest lines by using the
method described by Monga, Lengagne and Deriche in the following
INRIA report:


       "Crest lines extraction in volume 3D medical images"
       "a multi-scale approach"
       http://hal.inria.fr/inria-00074338/en/


The basic Gaussian recursive image filter needed for computing
the first and second derivatives are already available in ITK:

http://www.itk.org/Insight/Doxygen/html/classitk_1_1RecursiveGaussianImageFilter.html
http://www.itk.org/Insight/Doxygen/html/classitk_1_1HessianRecursiveGaussianImageFilter.html


   Regards,


      Luis


-----------------------
sami bourouis wrote:
> Hi,
>  
> I want to compute the crest line on a polydata. How can I do ? Is there 
> any example code to do this.
>  
> many thanks in advanced.
>  
> sami
> 
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