[Insight-users] PointSet Segmentation

[Kevin H. Hobbs]

On Thu, 2005-08-11 at 15:12 -0400, Karthik Krishnan wrote:
> 
> Kevin H. Hobbs wrote:
> 
> >Is there any way to segment PointSets or Blobs?  I looked through the
> >software guide, and the Doxygen, and I didn't see anything.
> >  
> >
> If your point set is sparse enough, you can use a clustering algorithm.
> 
> You can use Kmeans clustering from ITK.
> Take a look at Examples/Statistics/KdTreeBasedKMeansClustering.cxx
> 
> Your sample in the example will be the list of points in the point set. 
> You can define the number of clusters you want.
> Since Euclidian distance metric is used, you will end up binning your 
> sparse image into n clusters.
> 
> HTH
> karthik

From a 10 min read of the software guide, it sounds like k-Means
clustering would work well for sphere-ish things.  Is this correct?  The
things I want to segment are mostly long, skinny, and curvy.  I suspect
this would cause trouble. 
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