If I am using a signed distance function to represent an object interface, how can I tell if a topological change occurs during the course of a (level set) evolution?

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quix
quix on 23 May 2014
Edited: quix on 23 May 2014
I want to detect a 2D object with known topology and I'd like to able to stop the segmentation if a topological change occurs. Does anybody know how to do this?

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