[Insight-users] Problem with ImagePCAShapeModelEstimator

[Ken Urish]

I had sent out this email last week - If someone could point me in the
right direction I would appreciate it.

I am using ImagePCAShapeModelEstimator to create a shape model for
GeodesicActiveContourShapePriorLevelSet:
1) Is the output images of ImagePCAShapeModelEstimator supposed to
look like signed distance maps?

2) How do you create the binary images needed for the
GeodesicActiveContourShapePriorLevelSet from the PCAModelEstimator?

Thanks
--Ken--


On Wed, Apr 2, 2008 at 4:15 PM, Ken Urish <ken.urish at gmail.com> wrote:
> All
>
>  I am having lots of problems connecting connecting the shape model
>  generated by ImagePCAShapeModelEstimator to the
>  GeodesicActiveContourShapePriorLevelSet.
>
>  The example GeodesicActiveContourShapePriorLevelSetImageFilter uses
>  binary images of the mean and 1st, 2nd... principle component images
>  as the input for the shape model. My output from the shape model of
>  teh 1st, 2nd, 3rd..... pca images are signed distance images.
>  1) Are signed distance images of each principle component correct
>  output from the shape model estimator?
>  2) How would I turn the output from the shape model estimator into a
>  series of binary images of the mean, 1st, 2nd, and 3rd principle
>  components so I can use them with the example code for the level set
>  method?
>
>  Perhaps some example code of this bridge would be enormously useful?
>
>  Ive spent a couple hours searching through the list serve, re-reading
>  the paper, and going through the example/manual and Im still stuck.
>
>
>  Thanks
>  --Ken--
>