There has been an increase in the use of video surveillance and monitoring in public areas to improve safety and security. Change detection and crowding/congestion density estimation are two sub-tasks in a subway monitoring system. We propose a method that decomposes this problem into two steps. The first step consists of a change detection algorithm that distinguishes the background from the foreground. This is done using a discontinuity preserving MRF-based approach where the information from different sources (background subtraction, intensity modeling) is combined with spatial constraints to provide a smooth motion detection map. Then, the obtained change detection map is combined with a geometry module that performs a soft auto-calibration to estimate a measure of congestion of the observed area (platform). Extensive experimental results in a metro station of a metropolitan city demonstrates the performance and the potential of our method.


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    Titel :

    A MRF-based approach for real-time subway monitoring


    Beteiligte:
    Paragios, N. (Autor:in) / Ramesh, V. (Autor:in)


    Erscheinungsdatum :

    01.01.2001


    Format / Umfang :

    954350 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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    Paragios, N. / Ramesh, V. / IEEE | British Library Conference Proceedings | 2001



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