[Insight-users] itkGeodesicActiveContourShapePriorLevelSetImageFilter/PCAShapeSignedDistandeFunction

[Karl Fritscher]

Hi ITK-users,

I m using the itkGeodesicActiveContourShapePriorLevelSetImageFilter
and have one question to setting the initial parameters. Setting the
initial paramters for the  transformation in the
PCAShapeSignedDistandeFunction would mean that I do have to know the
exact position of the object to be segmented,right?! As far as I
remember Leventon s implementation , the model has been aligned to the
evolving contour during the segmentation process. Is this also the case
in the ITK implementation?!(Or what else is the optimizer in the filter
doing?)
Would this mean that i only need rough estimates for the initial
parameters?

Many thanks in advance

Karl