[vtkusers] getting largest components output by vtkPolyDataConnectivityFilter

[Steve M. Robbins]

Hi Michel,

On Wed, Dec 15, 2004 at 04:15:27PM +0900, Michel Audette wrote:
> Hi everyone,
> 
> I am working on a method to extract anatomical surfaces for producing
> patient-specific surgery simulator, and one issue that I have is that
> Marching Cubes produces small surfaces that of little consequence to the
> simulation. They are a nuisance [...]

I can't answer your specific question.

But I was wondering if the small surfaces are due to noise and, if so,
whether you tried smoothing the data first?  I have played with
"geometric heat equation" smoothing which is supposed to
preferentially remove spatially-small bumps -- might it suit your
purpose?  I have a MINC-based implementation of Kimia and Siddiqi's
"Geometric Heat Equation and Nonlinear Diffusion of Shapes and Images"
(CVIU 64(3):305-322, 1996).  If you're interested, I can send it to
you.


-Steve