On Implicit Modeling for Fitting Purposes

  • Ralf Plänkers
  • Pascal Fua
Chapter
Part of the IFIP — The International Federation for Information Processing book series (IFIPAICT, volume 68)

Abstract

Tracking and modeling people from video sequences has become an increasingly important research topic, with applications including animation, surveillance and sports medicine. In this paper, we propose a model based 3—D approach to recovering both body shape and motion. It takes advantage of a sophisticated animation model to achieve both robustness and realism. Stereo sequences of people in motion serve as input to our system. From these, we extract a 2.5—D description of the scene and, optionally, silhouette edges. We propose an integrated framework to fit the model and to track the person’s motion. Constraints for 3—D points and silhouette edges are presented in detail. We recover not only the motion but also a full animation model closely resembling the subject.

Keywords

Body fitting body modeling implicit surface metaball 
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Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Ralf Plänkers
    • 1
  • Pascal Fua
    • 1
  1. 1.Computer Graphics Lab (LIG)Swiss Federal Institute of Technology (EPFL)LausanneSwitzerland

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