Volume 8 Number 9 ( Sep. 2013)
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JSW 2013 Vol.8(9): 2238-2245 ISSN: 1796-217X
doi: 10.4304/jsw.8.9.2238-2245

Human Action Recognition Using APJ3D and Random Forests

Ling Gan, Fu Chen
Chongqing Key Laboratory of Computational Intelligence, Chongqing University of Posts & Telecommunications, Chongqing, China

Abstract—Human action recognition is an important yet challenging task. In this paper, a simple and efficient method based on random forests is proposed for human action recognition. First, we extract the 3D skeletal joint locations from depth images. The APJ3D computed from the action depth image sequences by employing the 3D joint position features and the 3D joint angle features, and then clustered into K-means algorithm, which represent the typical postures of actions. By employing the improved Fourier Temporal Pyramid, we recognize actions using random forests. The proposed method is evaluated by using a public video dataset, namely UTKinect-Action dataset. This dataset is constituted of 200 3D sequences of 10 activities performed by 10 individuals in varied views. Experimental results show that the robustness of 3D skeletal joint location estimation display very well results, and the proposed method performs very well on that dataset. In addition, due to the design of our method and the robust 3D skeletal joint locations estimation from RGB-D sensor, our method demonstrates significant reliability against noise on 3D action dataset.

Index Terms—APJ3D, Fourier Temporal Pyramid, random forests

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Cite: Ling Gan, Fu Chen, "Human Action Recognition Using APJ3D and Random Forests," Journal of Software vol. 8, no. 9, pp. 2238-2245, 2013.

General Information

ISSN: 1796-217X (Online)
Frequency: Monthly
Editor-in-Chief: Prof. Antanas Verikas
Executive Editor: Ms. Yoyo Y. Zhou
Abstracting/ Indexing: DBLP, EBSCO, ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, etc
E-mail: jsw@iap.org
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