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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1109/TIP.2017.2745212
|2 doi
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|a eng
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| 100 |
1 |
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|a Bing Su
|e verfasserin
|4 aut
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| 245 |
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|a Unsupervised Hierarchical Dynamic Parsing and Encoding for Action Recognition
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|c 2017
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|a ƒaComputermedien
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| 500 |
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|a Date Completed 11.12.2018
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|a Date Revised 11.12.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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| 520 |
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|a Generally, the evolution of an action is not uniform across the video, but exhibits quite complex rhythms and non-stationary dynamics. To model such non-uniform temporal dynamics, in this paper, we describe a novel hierarchical dynamic parsing and encoding method to capture both the locally smooth dynamics and globally drastic dynamic changes. It parses the dynamics of an action into different layers and encodes such multi-layer temporal information into a joint representation for action recognition. At the first layer, the action sequence is parsed in an unsupervised manner into several smooth-changing stages corresponding to different key poses or temporal structures by temporal clustering. The dynamics within each stage are encoded by mean-pooling or rank-pooling. At the second layer, the temporal information of the ordered dynamics extracted from the previous layer is encoded again by rank-pooling to form the overall representation. Extensive experiments on a gesture action data set (Chalearn Gesture) and three generic action data sets (Olympic Sports, Hollywood2, and UCF101) have demonstrated the effectiveness of the proposed method
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|a Journal Article
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| 700 |
1 |
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|a Jiahuan Zhou
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiaoqing Ding
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ying Wu
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 26(2017), 12 vom: 20. Dez., Seite 5784-5799
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|x 1941-0042
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|g volume:26
|g year:2017
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|g day:20
|g month:12
|g pages:5784-5799
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|u http://dx.doi.org/10.1109/TIP.2017.2745212
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