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Subject: Re: Automatic segmentation
Date: Tue, 10 Jun 2008 19:19:01 +0000 (UTC)
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I have used active contour or "snakes" to segment 2D
Computed Tomography (CT) images. It seems to work very well
for my purpose.

Does anyone know how to extend the 2D segmentation to whole
stacks or 3D segmentation using the active contour or
"snakes" principle?

I have image stack of live pigs, which I want to dissect
"virtually" by removing internal organs in a fast and
automatic way. The stacks consist of 1200 images per pig,
and the data matrix or cube (X-Y-Z) is 512-512-1200.

So far, I have used seed points and "snakes", extrapolating
the seed points in the Z-direction, and changing seed points
manually when the anatomy of the pig changes. It is a
semi-automatic method, which I want to automate further.
Total time used for this method is approx. 10 minutes per
pig, and I want to reduce it even further.

regards J?rgen Kongsro