Multivariate relevance vector machines for tracking

  • Authors:
  • Arasanathan Thayananthan;Ramanan Navaratnam;Björn Stenger;Philip H. S. Torr;Roberto Cipolla

  • Affiliations:
  • University of Cambridge, UK;University of Cambridge, UK;Toshiba Corporate R&D Center, Kawasaki, Japan;Oxford Brookes University, UK;University of Cambridge, UK

  • Venue:
  • ECCV'06 Proceedings of the 9th European conference on Computer Vision - Volume Part III
  • Year:
  • 2006

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Abstract

This paper presents a learning based approach to tracking articulated human body motion from a single camera. In order to address the problem of pose ambiguity, a one-to-many mapping from image features to state space is learned using a set of relevance vector machines, extended to handle multivariate outputs. The image features are Hausdorff matching scores obtained by matching different shape templates to the image, where the multivariate relevance vector machines (MVRVM) select a sparse set of these templates. We demonstrate that these Hausdorff features reduce the estimation error in clutter compared to shape-context histograms. The method is applied to the pose estimation problem from a single input frame, and is embedded within a probabilistic tracking framework to include temporal information. We apply the algorithm to 3D hand tracking and full human body tracking.