[ITK] [ITK-users] Isosurface extraction with ITK

Joël Schaerer joel.schaerer at gmail.com
Tue Apr 8 08:25:47 EDT 2014


Hi all,

I'm trying to perform isosurface extraction from a continuous map using 
ITK (no VTK). The closest match I've found is the BinaryMask3DMeshSource 
which performs the Marching Cubes on a binary mask.

Unfortunately this requires thresholding the input before meshing, which 
results in rough edges in the output mesh. VTK's marching cube filter 
allows setting a floating-point isosurface value and the resulting 
meshes are noticeably smoother.

Is there a better solution to this problem using ITK only? Is there any 
particular reason why the marching cubes algorithm is implemented 
differently in ITK and VTK?

Thanks!

joel

PS: A sample input image with the corresponding ITK and VTK meshes is 
available here: 
http://sd-33294.dedibox.fr/~joel/isosurface_extraction.tar.gz


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