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Real-time action recognition using a multilayer descriptor with variable size

[+] Author Affiliations
Marlon F. Alcantara, Thierry P. Moreira, Helio Pedrini

University of Campinas, Institute of Computing, Av. Albert Einstein 1251, Campinas-SP 13083-852, Brazil

J. Electron. Imaging. 25(1), 013020 (Feb 03, 2016). doi:10.1117/1.JEI.25.1.013020
History: Received July 2, 2015; Accepted January 12, 2016
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Abstract.  Video analysis technology has become less expensive and more powerful in terms of storage resources and resolution capacity, promoting progress in a wide range of applications. Video-based human action detection has been used for several tasks in surveillance environments, such as forensic investigation, patient monitoring, medical training, accident prevention, and traffic monitoring, among others. We present a method for action identification based on adaptive training of a multilayer descriptor applied to a single classifier. Cumulative motion shapes (CMSs) are extracted according to the number of frames present in the video. Each CMS is employed as a self-sufficient layer in the training stage but belongs to the same descriptor. A robust classification is achieved through individual responses of classifiers for each layer, and the dominant result is used as a final outcome. Experiments are conducted on five public datasets (Weizmann, KTH, MuHAVi, IXMAS, and URADL) to demonstrate the effectiveness of the method in terms of accuracy in real time.

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Citation

Marlon F. Alcantara ; Thierry P. Moreira and Helio Pedrini
"Real-time action recognition using a multilayer descriptor with variable size", J. Electron. Imaging. 25(1), 013020 (Feb 03, 2016). ; http://dx.doi.org/10.1117/1.JEI.25.1.013020


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