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Combining Per-frame and Per-track Cues for Multi-person Action Recognition

  • Sameh Khamis
  • Vlad I. Morariu
  • Larry S. Davis
Part of the Lecture Notes in Computer Science book series (LNCS, volume 7572)

Abstract

We propose a model to combine per-frame and per-track cues for action recognition. With multiple targets in a scene, our model simultaneously captures the natural harmony of an individual’s action in a scene and the flow of actions of an individual in a video sequence, inferring valid tracks in the process. Our motivation is based on the unlikely discordance of an action in a structured scene, both at the track level and the frame level (e.g., a person dancing in a crowd of joggers). While we can utilize sampling approaches for inference in our model, we instead devise a global inference algorithm by decomposing the problem and solving the subproblems exactly and efficiently, recovering a globally optimal joint solution in several cases. Finally, we improve on the state-of-the-art action recognition results for two publicly available datasets.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • Sameh Khamis
    • 1
  • Vlad I. Morariu
    • 1
  • Larry S. Davis
    • 1
  1. 1.University of MarylandCollege ParkUSA

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