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Journal of Intelligent & Robotic Systems

, Volume 77, Issue 3–4, pp 583–596 | Cite as

Online Dynamic Gesture Recognition for Human Robot Interaction

  • Dan Xu
  • Xinyu Wu
  • Yen-Lun Chen
  • Yangsheng Xu
Article

Abstract

This paper presents an online dynamic hand gesture recognition system with an RGB-D camera, which can automatically recognize hand gestures against complicated background. For background subtraction, we use a model-based method to perform human detection and segmentation in the depth map. Since a robust hand tracking approach is crucial for the performance of hand gesture recognition, our system uses both color information and depth information in the process of hand tracking. To extract spatio-temporal hand gesture sequences in the trajectory, a reliable gesture spotting scheme with detection on change of static postures is proposed. Then discrete HMMs with Left-Right Banded (LRB) topology are utilized to model and classify gestures based on multi-feature representation and quantization of the hand gesture sequences. Experimental evaluations on two self-built databases of dynamic hand gestures show the effectiveness of the proposed system. Furthermore, we develop a human-robot interactive system, and the performance of this system is demonstrated through interactive experiments in the dynamic environment.

Keywords

Hand gesture recognition Dynamic gesture spotting Human-robot interaction 

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Dan Xu
    • 1
    • 2
  • Xinyu Wu
    • 1
    • 2
  • Yen-Lun Chen
    • 1
  • Yangsheng Xu
    • 2
  1. 1.Guangdong Provincial Key Laboratory of Robotics and Intelligent System, Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhenChina
  2. 2.Department of Mechanical and Automation EngineeringThe Chinese University of Hong KongHong KongHong Kong

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