Audio-Visual Surveillance System for Application in Bank Operating Room

  • Józef Kotus
  • Kuba Lopatka
  • Andrzej Czyżewski
  • Georgis Bogdanis
Part of the Communications in Computer and Information Science book series (CCIS, volume 368)

Abstract

An audio-visual surveillance system able to detect, classify and to localize acoustic events in a bank operating room is presented. Algorithms for detection and classification of abnormal acoustic events, such as screams or gunshots are introduced. Two types of detectors are employed to detect impulsive sounds and vocal activity. A Support Vector Machine (SVM) classifier is used to discern between the different classes of acoustic events. The methods for calculating the direction of coming sound employing an acoustic vector sensor are presented. The localization is achieved by calculating the DOA (Direction of Arrival) histogram. The evaluation of the system based on experiments conducted in a real bank operating room is given. Results of sound event detection, classification and localization are given and discussed. The system proves efficient for the task of automatic surveillance of the bank operating room.

Keywords

sound detection sound source localization audio surveillance 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Józef Kotus
    • 1
  • Kuba Lopatka
    • 1
  • Andrzej Czyżewski
    • 1
  • Georgis Bogdanis
    • 2
  1. 1.Faculty of Electronics, Telecommunications and Informatics, Multimedia Systems DepartmentGdańsk University of TechnologyGdańskPoland
  2. 2.Informatic Systems Designing and Applications Agency MicrosystemSopotPoland

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