Volume 7 Number 8 (Aug. 2012)
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JCP 2012 Vol.7(8): 1935-1942 ISSN: 1796-203X
doi: 10.4304/jcp.7.8.1935-1942

An Interval Overlapping Degree Extension Method in Upper Limbs Motion Recognition Based on Acceleration Median

Yonghua Wang1, Fei Yuan2, Lei Qi3, Jian Yang4
1Guangdong University of Technology/ Faculty of Automation, Guangzhou, China
2Sun Yat-sen University / School of Information Science and Technology, Guangzhou, China
3Guangdong University of Technology/ Center of Campus Network & Modem Educational Technology, Guangzhou, China
4Guangdong University of Technology/ Department of Electronic Information Science and Technology, Guangzhou, China


Abstract—Human body action recognition technology is a challenging problem in Human-computer interaction. The computer vision and motion measurements are two primary recognition methods. And the action recognition includes dynamic action recognition and gesture recognition. Acceleration sensor-based human action recognition technology belongs to the dynamic action recognition. This paper proposed an interval overlapping degree extension method in upper limbs motion recognition based on acceleration median (IODE-AM). Stretch arm has the feature that the arm’s acceleration increases firstly, and then decreases. Therefore, the proposed method chooses the acceleration median of the arm outstretching process and the direction of acceleration at the initial moment of arm outstretching as its recognition characteristic. It can reduce the affection of outstretching speed to the characteristic value of limb action, and can achieve the goal that the different outstretching speed actions having same direction could be described by the same characters. Then combining the extension pattern recognition method based on the interval overlapping degree, the IODE-AM recognized the limb action. The experiment results show that the recognition accuracy rate of the IODE-AM is 93.2 %.

Index Terms—Upper limb action recognition, extension recognition, acceleration median, interval overlapping degree.

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Cite: Yonghua Wang, Fei Yuan, Lei Qi, Jian Yang, "An Interval Overlapping Degree Extension Method in Upper Limbs Motion Recognition Based on Acceleration Median," Journal of Computers vol. 7, no. 8, pp. 1935-1942, 2012.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat, CNKI,etc
E-mail: jcp@iap.org
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