[CJP08] Approximating hv-convex binary matrices and images from discrete projections
Conférence Internationale avec comité de lecture :
IAPR'08 14th Int. Conf. on Discrete Geometry for Computer Imagery,
January 2008,
pp.413-422,
Series LNCS 4992,
motcle:
Résumé:
We study the problem of reconstructing hv-convex binary matrices from few projections. We solve a polynomial time case and we determine some properties of the hv-convex matrices. Since the problem is NP-complete, we provide an iterative approximation based on a longest path and a min-cost/max- ow model. The experimental results show that the reconstruction algorithm performs quite well.