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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2016.2570550
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|a eng
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|a Kaili Zhao
|e verfasserin
|4 aut
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| 245 |
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|a Joint Patch and Multi-label Learning for Facial Action Unit and Holistic Expression Recognition
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|c 2016
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|a Date Revised 20.11.2019
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Most action unit (AU) detection methods use one-versus-all classifiers without considering dependences between features or AUs. In this paper, we introduce a joint patch and multi-label learning (JPML) framework that models the structured joint dependence behind features, AUs, and their interplay. In particular, JPML leverages group sparsity to identify important facial patches, and learns a multi-label classifier constrained by the likelihood of co-occurring AUs. To describe such likelihood, we derive two AU relations, positive correlation and negative competition, by statistically analyzing more than 350,000 video frames annotated with multiple AUs. To the best of our knowledge, this is the first work that jointly addresses patch learning and multi-label learning for AU detection. In addition, we show that JPML can be extended to recognize holistic expressions by learning common and specific patches, which afford a more compact representation than the standard expression recognition methods. We evaluate JPML on three benchmark datasets CK+, BP4D, and GFT, using within-and cross-dataset scenarios. In four of five experiments, JPML achieved the highest averaged F1 scores in comparison with baseline and alternative methods that use either patch learning or multi-label learning alone
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|a Journal Article
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|a Wen-Sheng Chu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a De la Torre, Fernando
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cohn, Jeffrey F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Honggang Zhang
|e verfasserin
|4 aut
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| 773 |
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|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
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|g 25(2016), 8 vom: 15. Aug., Seite 3931-3946
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|u http://dx.doi.org/10.1109/TIP.2016.2570550
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