[Insight-users] Level-set methods for image segmentation
salah at gris . uni-tuebingen . de
Thu, 8 Aug 2002 17:01:32 +0200
I am trying to write an image segmentation program based on the level set
classes of itk. I was trying with the ShapeDetectionLevelSetFilter and with
a volume image of 181*217*181. That program had always abnormally
terminated when I call Update with the ShapeDetectionLevelSetFilter-object.
I have just tried with a 64*64*64 image. The program did not stop
abnormally. BUT the result is not as I expect.
As I understood from the documentation of the ShapeDetection filter
, the inputs are an initial level set and an edge potential image. I think
the edge potential image created by my program is correct. I looks very
like an edge map of the original image.
However, I think the initial level set is not correct. it is just an image
in which a central point (a seed) is black and the other pixel go gradually
to white as we go further from the seed point. I realy do not know if this
How should the initial level set look like??
With many thanks.....