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Multi-stage Classification for Audio Based Activity Recognition

  • José Lopes
  • Charles Lin
  • Sameer Singh
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4224)

Abstract

Context recognition in indoor and outdoor surroundings is an important area of research for the development of autonomous systems. This work describes an approach to the classification of audio signals found in both indoor and outdoor environments. Several audio features are extracted from raw signals. We analyze the relevance and importance of these features and use that information to design a multi-stage classifier architecture. Our results show that the multi-stage classification scheme is superior than a single stage classifier and it generates an 80% success rate on a 7 class problem.

Keywords

Gaussian Mixture Model Audio Signal Independent Component Analysis Blind Source Separation Audio Feature 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • José Lopes
    • 1
  • Charles Lin
    • 1
  • Sameer Singh
    • 1
  1. 1.Research School of InformaticsLoughborough UniversityLoughboroughUK

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