[Insight-users] how to generate the mean shape and principal mode images for GeodesicActiveContourShapePriorLevelSetImageFilter

[Zachary Pincus]

Hello,

You'll want to use the ImagePCAShapeModelEstimator class to get the 
mean and principal modes of a set of signed distance maps.

To generate signed distance maps, you feed (properly registered) binary 
masks of your shapes of interest into one of the SignedDistanceMap 
classes (either the ApproximateSignedDistanceMap class which is fast, 
or the DsnielssonSignedDistanceMap class, which is exact.)

I strongly suggest reading the Leventon paper where this method is 
described in detail, as well:

http://www.spl.harvard.edu:8000/pages/papers/leventon/cvpr00/cvpr00.pdf

Zach Pincus

Department of Biochemistry and Program in Biomedical Informatics
Stanford University School of Medicine



On Jun 4, 2005, at 10:56 AM, <kingaza at gmail.com> wrote:

> Hi, all
>
> I find the asm/aam is a intersting method, but now i has some
> questions about the example.
> in the example, the mean shape and principal mode are files, but i can
> not find how the files were generated. and i don't know how to use it
> in other occasion.
>
> please help me!
>
>
> -- 
> Regards,
> Kingaza
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