- Some very pronounced roads on the image give
very low potential, and can attract several roads of the network,
- Thus, we need to introduce a constraint of non-overlapping between
roads.
Uap(x) = number of pixels belonging to more than one road
This is not a prior energy in a proper sense, since we have to know
the image to compute the road. But the constraint it expresses is
still a general constraint on the network.
Guillaume Rellier
1999-11-10