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231224s2013 xx |||||o 00| ||eng c |
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|a 10.1109/TPAMI.2012.187
|2 doi
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|a eng
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|a Morariu, Vlad I
|e verfasserin
|4 aut
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|a Tracking people's hands and feet using mixed network AND/OR search
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|c 2013
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|a Text
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|a ƒaComputermedien
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|a Date Completed 16.09.2013
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|a Date Revised 22.03.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a We describe a framework that leverages mixed probabilistic and deterministic networks and their AND/OR search space to efficiently find and track the hands and feet of multiple interacting humans in 2D from a single camera view. Our framework detects and tracks multiple people's heads, hands, and feet through partial or full occlusion; requires few constraints (does not require multiple views, high image resolution, knowledge of performed activities, or large training sets); and makes use of constraints and AND/OR Branch-and-Bound with lazy evaluation and carefully computed bounds to efficiently solve the complex network that results from the consideration of interperson occlusion. Our main contributions are: 1) a multiperson part-based formulation that emphasizes extremities and allows for the globally optimal solution to be obtained in each frame, and 2) an efficient and exact optimization scheme that relies on AND/OR Branch-and-Bound, lazy factor evaluation, and factor cost sensitive bound computation. We demonstrate our approach on three datasets: the public single person HumanEva dataset, outdoor sequences where multiple people interact in a group meeting scenario, and outdoor one-on-one basketball videos. The first dataset demonstrates that our framework achieves state-of-the-art performance in the single person setting, while the last two demonstrate robustness in the presence of partial and full occlusion and fast nontrivial motion
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|a Journal Article
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| 650 |
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|a Research Support, U.S. Gov't, Non-P.H.S.
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| 700 |
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|a Harwood, David
|e verfasserin
|4 aut
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| 700 |
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|a Davis, Larry S
|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 1979
|g 35(2013), 5 vom: 23. Mai, Seite 1248-62
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|u http://dx.doi.org/10.1109/TPAMI.2012.187
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