HMM-Based Action Recognition Using Contour Histograms

  • Authors:
  • M. Ángeles Mendoza;Nicolás Pérez De La Blanca

  • Affiliations:
  • University of Granada, Department of Computer Science and Artificial Intelligence,;University of Granada, Department of Computer Science and Artificial Intelligence,

  • Venue:
  • IbPRIA '07 Proceedings of the 3rd Iberian conference on Pattern Recognition and Image Analysis, Part I
  • Year:
  • 2007

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Abstract

This paper describes an experimental study about a robust contour feature (shape-context) for using in action recognition based on continuous hidden Markov models (HMM). We ran different experimental setting using the KTH's database of actions. The image contours are extracted using a standard algorithm. The shape-contextfeature vector is build from of histogram of a set ofnon-overlapping regions in the image. We show that the combined use of HMM and this feature gives equivalent o better results, in term of action detection, that current approaches in the literature.