An unsupervised approach for human activity detection and recognition

被引:0
作者
Department of Electrical Engineering and Information, Systems, Graduate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku [1 ]
Tokyo, Japan
不详 [2 ]
CA, United States
机构
[1] Department of Electrical Engineering and Information, Systems, Graduate School of Engineering, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, 113-8656, Tokyo
[2] Department of Radiology, University of California, Los Angeles, Los Angeles, 90095-7437, CA
来源
Int. J. Simul. Syst. Sci. Technol. | / 5卷 / 42-49期
关键词
Human activity detection; Human activity recognition; RGBD sensor; Unsupervised learning;
D O I
10.5013/IJSSST.a.14.05.06
中图分类号
学科分类号
摘要
Human activity recognition is an important ability in any system that supports human in performing their daily activities. However, current supervised approach in human activity recognition is difficult to be deployed in the natural human living environment where labeled observations are scarce. In this paper, we demonstrate the use of K-means clustering and simple template models to achieve human activity detection and recognition in an unsupervised manner. The features used are extracted from the skeleton data obtained from an inexpensive RGBD (RGB-Depth) sensor. Our results show an average detection performance of 80.4% precision and 83.8% recall. The availability of an unsupervised approach in human activity recognition will make possible the wide adoption of human activity recognition in the natural human living environment. © 2013, UK Simulation Society. All Rights Reserved.
引用
收藏
页码:42 / 49
页数:7
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