[Insight-users] Fast Marching for arbitrary interfaces

[Amardeep Singh]

Dear ITK-users

In the current implementation of the fast marching filter, the initial 
surface that is to be propagated
has to be a binary interface (Please, correct me if I'm wrong).
I am wondering if there is a way to apply the fast marching filter in 
ITK to arbitrary inital fronts as it is described
by Sethian in his paper "A fast marching level set method for monotonically
advancing fronts" (PNAS, February 1996). If such a functionality does 
not exist at the moment:
Would you agree that the itkIsoContourDistanceImageFilter might be a 
good starting point to implement the initial
calculation of the signed distances to some arbitrary isosurface? These 
distances might then be used for the fast marching propagation as 
described by Sethian.

Thanks a lot!

Best regards
Amardeep