This study shows how an automatic visual surveillance system can be used to enhance the security and the reliability of a tramway driven by a human operator. We have developed a new approach for extracting the images of moving objects which requires only a sequence of consecutive frames. Gradient operators on current frame and difference picture combined with thresholding and smoothing allows to detect moving edges and to extract moving objects from their background. The smallest surrounding rectangle is assigned to each moving object for tracking purposes. Object tracking provides the data necessary to predict trajectories of vehicles and pedestrians and to predict a possible collision, before actual physical contact occurs. If a risk of collision is discovered by the obstacle recognition system, a collision avoidance procedure has to be activated in order to apply the emergency brake if the driver has not already stopped the tramway.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A visual surveillance system for traffic collision avoidance control


    Weitere Titelangaben:

    Ein Ueberwachungssystem zur Unfallverhuetung


    Beteiligte:
    Postaire, J.G. (Autor:in) / Stelmaszyk, P. (Autor:in) / Bonnet, P. (Autor:in) / Deparis, J.P. (Autor:in)


    Erscheinungsdatum :

    1987


    Format / Umfang :

    6 Seiten, 21 Bilder, 10 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch






    AIRCRAFT TRAFFIC COLLISION AVOIDANCE

    GREENE RANDALL A | Europäisches Patentamt | 2017

    Freier Zugriff

    Aircraft traffic collision avoidance

    GREENE RANDALL A | Europäisches Patentamt | 2019

    Freier Zugriff

    Aircraft traffic collision avoidance system

    Belkin, V.V. / Yanovsky, F.J. | Tema Archiv | 2005