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Learning Behavioral Patterns of Time Series for Video-Surveillance

  • Nicoletta Noceti
  • Matteo Santoro
  • Francesca Odone
Part of the Advances in Pattern Recognition book series (ACVPR)

Abstract

This chapter deals with the problem of learning behaviors of people activities from (possibly big) sets of visual dynamic data, with a specific reference to video-surveillance applications. The study focuses mainly on devising meaningful data abstractions able to capture the intrinsic nature of the available data, and applying similarity measures appropriate to the specific representations. The methods are selected among the most promising techniques available in the literature and include classical curve fitting, string-based approaches, and hidden Markov models. The analysis considers both supervised and unsupervised settings and is based on a set of loosely labeled data acquired by a real video-surveillance system. The experiments highlight different peculiarities of the methods taken into consideration, and the final discussion guides the reader towards the most appropriate choice for a given scenario.

Keywords

Hide Markov Model Input Space Spectral Cluster Temporal Series Input Representation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to thank Annalisa Barla and Luca Baldassarre for the code on multi-class RLS and the help given in running the experiments for the supervised case. The low-level processing modules are on going joint work with Augusto Destrero and Alberto Lovato.

Matteo Santoro is supported by Compagnia di San Paolo (Torino) through the Neuroscience Program for the project Action representations and their impairment.

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