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Event Based Switched Dynamic Bayesian Networks for Autonomous Cognitive Crowd Monitoring

  • Simone Chiappino
  • Lucio Marcenaro
  • Pietro Morerio
  • Carlo Regazzoni
Chapter
Part of the Augmented Vision and Reality book series (Augment Vis Real, volume 6)

Abstract

Human behavior analysis is one of the most important applications in Intelligent Video Surveillance (IVS) field. In most recent systems addressed by research, automatic support to the human decisions based on object detection, tracking and situation assessment tools is integrated as a part of a complete cognitive artificial process including security maintenance procedures actions that are in the scope of the system. In such cases an IVS needs to represent complex situations that describe alternative possible real time interactions between the dynamic observed situation and operators’ actions. To obtain such knowledge, particular types of Event based Dynamic Bayesian Networks E-DBNs are here proposed that can switch among alternative Bayesian filtering and control lower level modules to capture adaptive reactions of human operators. It is shown that after the off line learning phase Switched E-DBNs can be used to represent and anticipate possible operators’ actions within the IVS. In this sense acquired knowledge can be used for either fully autonomous security preserving systems or for training of new operators. Results are shown by considering a crowd monitoring application in a critical infrastructure. A system is presented where a Cognitive Node (CN) embedding in a structured way Switched E-DBN knowledge can interact with an active visual simulator of crowd situations. It is also shown that outputs from such a simulator can be easily compared with video signals coming from real cameras and processed by typical Bayesian tracking methods.

Keywords

Crowding Dynamic Bayesian Networks Cognitive Systems Bio-inspired learning 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Simone Chiappino
    • 1
  • Lucio Marcenaro
    • 1
  • Pietro Morerio
    • 1
  • Carlo Regazzoni
    • 1
  1. 1.Signal Processing and Telecommunications Group, Department of Naval, Electrical, Electronic and Telecommunication EngineeringUniversity of GenoaGenoaItaly

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