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231223s2011 xx |||||o 00| ||eng c |
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|a 10.1109/TPAMI.2010.108
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|a eng
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|a Komodakis, Nikos
|e verfasserin
|4 aut
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|a MRF energy minimization and beyond via dual decomposition
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|c 2011
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 23.06.2011
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|a Date Revised 21.04.2011
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|a published: Print
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|a Citation Status MEDLINE
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|a This paper introduces a new rigorous theoretical framework to address discrete MRF-based optimization in computer vision. Such a framework exploits the powerful technique of Dual Decomposition. It is based on a projected subgradient scheme that attempts to solve an MRF optimization problem by first decomposing it into a set of appropriately chosen subproblems, and then combining their solutions in a principled way. In order to determine the limits of this method, we analyze the conditions that these subproblems have to satisfy and demonstrate the extreme generality and flexibility of such an approach. We thus show that by appropriately choosing what subproblems to use, one can design novel and very powerful MRF optimization algorithms. For instance, in this manner we are able to derive algorithms that: 1) generalize and extend state-of-the-art message-passing methods, 2) optimize very tight LP-relaxations to MRF optimization, and 3) take full advantage of the special structure that may exist in particular MRFs, allowing the use of efficient inference techniques such as, e.g., graph-cut-based methods. Theoretical analysis on the bounds related with the different algorithms derived from our framework and experimental results/comparisons using synthetic and real data for a variety of tasks in computer vision demonstrate the extreme potentials of our approach
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|a Journal Article
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1 |
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|a Paragios, Nikos
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tziritas, Georgios
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t IEEE transactions on pattern analysis and machine intelligence
|d 1998
|g 33(2011), 3 vom: 17. März, Seite 531-52
|w (DE-627)NLM098212257
|x 1939-3539
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|g year:2011
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|g day:17
|g month:03
|g pages:531-52
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|u http://dx.doi.org/10.1109/TPAMI.2010.108
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