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GBRPR
2007
Springer

Hierarchy Construction Schemes Within the Scale Set Framework

11 years 11 months ago
Hierarchy Construction Schemes Within the Scale Set Framework
Segmentation algorithms based on an energy minimisation framework often depend on a scale parameter which balances a fit to data and a regularising term. Irregular pyramids are defined as a stack of graphs successively reduced. Within this framework, the scale is often defined implicitly as the height in the pyramid. However, each level of an irregular pyramid can not usually be readily associated to the global optimum of an energy or a global criterion on the base level graph. This last drawback is addressed by the scale set framework designed by Guigues. The methods designed by this author allow to build a hierarchy and to design cuts within this hierarchy which globally minimise an energy. This paper studies the influence of the construction scheme of the initial hierarchy on the resulting optimal cuts. We propose one sequential and one parallel method with two variations within both. Our sequential methods provide partitions near an energy lower bound defined in this paper. Pa...
Jean-Hugues Pruvot, Luc Brun
Added 07 Jun 2010
Updated 07 Jun 2010
Type Conference
Year 2007
Where GBRPR
Authors Jean-Hugues Pruvot, Luc Brun
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