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Submodularity beyond submodular energies: coupling edges in graph cuts
We propose a new family of non-submodular global energy functions that still use submodularity internally to couple edges in a graph cut. We show it is possible to develop an efficient approximation algorithm that, thanks to the internal submodularity, can use standard graph cuts as a subroutine. We demonstrate the advantages of edge coupling in a natural setting, namely image segmentation. In particular, for finestructured objects and objects with shading variation, our structured edge coupling leads to significant improvements over standard approaches.
@inproceedings{JegelkaB2011, title = {Submodularity beyond submodular energies: coupling edges in graph cuts}, abstract = {We propose a new family of non-submodular global energy functions that still use submodularity internally to couple edges in a graph cut. We show it is possible to develop an efficient approximation algorithm that, thanks to the internal submodularity, can use standard graph cuts as a subroutine. We demonstrate the advantages of edge coupling in a natural setting, namely image segmentation. In particular, for finestructured objects and objects with shading variation, our structured edge coupling leads to significant improvements over standard approaches. }, pages = {1897-1904}, publisher = {IEEE}, address = {Piscataway, NJ, USA}, month = jun, year = {2011}, slug = {jegelkab2011}, author = {Jegelka, S. and Bilmes, J.}, month_numeric = {6} }