Exploiting Structural Hierarchy in Articulated Objects Towards Robust Motion Capture

  • Authors:
  • C. Canton-Ferrer;J. R. Casas;M. Pardàs

  • Affiliations:
  • Technical University of Catalonia, Barcelona, Spain;Technical University of Catalonia, Barcelona, Spain;Technical University of Catalonia, Barcelona, Spain

  • Venue:
  • AMDO '08 Proceedings of the 5th international conference on Articulated Motion and Deformable Objects
  • Year:
  • 2008

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Abstract

This paper presents a general analysis framework towards exploiting the underlying hierarchical and scalable structure of an articulated object for pose estimation and tracking. The Scalable Human Body Model (SHBM) is presented as a set of human body models ordered following a hierarchy criteria. The concept of annealing is applied to derive a generic particle filtering scheme able to perform a sequential filtering over the models contained in the SHBM leading to a structural annealingprocess. This scheme is applied to perform human motion capture in a multi-camera environment. Finally, the effectiveness of the proposed system is addressed by comparing its performance with the standard and annealed particle filtering approaches over an annotated database.