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Combining Skeletal Pose with Local Motion for Human Activity Recognition

  • Ran Xu
  • Priyanshu Agarwal
  • Suren Kumar
  • Venkat N. Krovi
  • Jason J. Corso
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7378)

Abstract

Recent work in human activity recognition has focused on bottom-up approaches that rely on spatiotemporal features, both dense and sparse. In contrast, articulated motion, which naturally incorporates explicit human action information, has not been heavily studied; a fact likely due to the inherent challenge in modeling and inferring articulated human motion from video. However, recent developments in data-driven human pose estimation have made it plausible. In this paper, we extend these developments with a new middle-level representation called dynamic pose that couples the local motion information directly and independently with human skeletal pose, and present an appropriate distance function on the dynamic poses. We demonstrate the representative power of dynamic pose over raw skeletal pose in an activity recognition setting, using simple codebook matching and support vector machines as the classifier. Our results conclusively demonstrate that dynamic pose is a more powerful representation of human action than skeletal pose.

Keywords

Human Pose Activity Recognition Dynamic Pose 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Ran Xu
    • 1
  • Priyanshu Agarwal
    • 2
  • Suren Kumar
    • 2
  • Venkat N. Krovi
    • 2
  • Jason J. Corso
    • 1
  1. 1.Computer Science and EngineeringState University of New York at BuffaloUSA
  2. 2.Mechanical and Aerospace EngineeringState University of New York at BuffaloUSA

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