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kPose: A New Representation For Action Recognition

  • Zhuoli Zhou
  • Mingli Song
  • Luming Zhang
  • Dacheng Tao
  • Jiajun Bu
  • Chun Chen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6494)

Abstract

Human action recognition is an important problem in computer vision. Most existing techniques use all the video frames for action representation, which leads to high computational cost. Different from these techniques, we present a novel action recognition approach by describing the action with a few frames of representative poses, namely kPose. Firstly, a set of pose templates corresponding to different pose classes are learned based on a newly proposed Pose-Weighted Distribution Model (PWDM). Then, a local set of kPoses describing an action are extracted by clustering the poses belonging to the action. Thirdly, a further kPose selection is carried out to remove the redundant poses among the different local sets, which leads to a global set of kPoses with the least redundancy. Finally, a sequence of kPoses is obtained to describe the action by searching the nearest kPose in the global set. And the proposed action classification is carried out by comparing the obtained pose sequence with each local set of kPose. The experimental results validate the proposed method by remarkable recognition accuracy.

Keywords

Action Recognition Class Number Human Action Recognition Action Recognition Approach Speedup Robust Feature 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Zhuoli Zhou
    • 1
  • Mingli Song
    • 1
  • Luming Zhang
    • 1
  • Dacheng Tao
    • 2
  • Jiajun Bu
    • 1
  • Chun Chen
    • 1
  1. 1.College of Computer ScienceZhejiang UniversityHangzhouChina
  2. 2.School of Computer EngineeringNanyang Technological UniversitySingapore

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