[Insight-users] about extracting the surface from 3D MRI

[Luis Ibanez]

Hi Yixun,

You can use the BinaryMask3DMeshSource class
http://www.itk.org/Insight/Doxygen/html/classitk_1_1BinaryMask3DMeshSource.html

Note that this is an implementation of the Marching Cubes
algorithm which is still covered by a Patent. You may have
to be careful with the conditions imposed by the use of
patented code. Contrary to the widespread belief, Universities
are not allowed to use patented material, not even for research
purposes, without first acquiring a license.

http://www.sciencemag.org/cgi/content/full/300/5626/1635a

That is the reason why we discourage the introduction of
any patented algorithms into ITK.


Another option is to convert your image to a VTK image
and use any of the several non-patented methods available
in VTK for extracting contours.


Note also that before you extract a surface from an anatomical
structure in an MRI image, you should perform some sort of
image segmentation on that image.  The simple extraction of
iso-surfaces directly from the image is unlikely to produce
an enclosed surface around an anatomical structure. You will
find a description of the segmentation methods available in
ITK in the Tutorial sessions

   http://www.itk.org/HTML/Tutorials.htm

in particular in

http://www.itk.org/CourseWare/Training/SegmentationMethodsOverview.pdf

and in the Segmentation chapter of the ITK Software Guide


   http://www.itk.org/ItkSoftwareGuide.pdf



 Regards,


     Luis



------------------
Yixun Liu wrote:

> Hi ITKusers,
>  
> I want to extract the specific surface from the 3D MRI. Could anybody 
> tell me if the ITK supprot this operation?
>  
> Thans a lot!
>  
> Regards,
>  
> Yixun Liu
> 
> 
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