Optimality Bounds for a Variational Relaxation of the Image Partitioning Problem
Optimality Bounds for a Variational Relaxation of the Image Partitioning Problem
复制标题
图像分割问题变分松弛的最优界
DOI:
10.1007/s10851-012-0390-7
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发表时间:
2013
影响因子:
2
通讯作者:
C. Schnoerr
中科院分区:
文献类型:
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作者:
J. Lellmann;F. Lenzen;C. Schnoerr
We consider a variational convex relaxation of a class of optimal partitioning and multiclass labeling problems, which has recently proven quite successful and can be seen as a continuous analogue of Linear Programming (LP) relaxation methods for finite-dimensional problems. While for the latter several optimality bounds are known, to our knowledge no such bounds exist in the infinite-dimensional setting. We provide such a bound by analyzing a probabilistic rounding method, showing that it is possible to obtain an integral solution of the original partitioning problem from a solution of the relaxed problem with ana prioriupper bound on the objective. The approach has a natural interpretation as an approximate, multiclass variant of the celebrated coarea formula.
DOI:
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发表时间:
2009
期刊:
影响因子:
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作者:
Carl Olsson
通讯作者:
Carl Olsson
DOI:
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发表时间:
2009
期刊:
IEEE International Conference on Computer Vision
影响因子:
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作者:
Carl Olsson;Martin Byröd;N. C. Overgaard;Fredrik Kahl
通讯作者:
Fredrik Kahl
DOI:
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发表时间:
2009
期刊:
IEEE International Conference on Computer Vision
影响因子:
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作者:
Petter Strandmark;Fredrik Kahl;N. C. Overgaard
通讯作者:
N. C. Overgaard