The proposed system is aimed at detecting and classifying 3D moving objects for security control of unmanned automatic railway stations. Most common approaches are based on active sensors like optical barriers or laser scanning devices. The proposed approach, named 3DMODS, is based on stereo vision technology, using a prediction-verification paradigm. Adaptive change detection is performed at the video rate to detect immediately moving objects in the scene. Object features are collected by "scanning" the scene with different parallel planes at variable height, to verify the volumetric consistency of the detected object. A prediction of stereo correspondence is performed, using homographic transformation on the set of predefined 3D planes, to verify whether the detected change is really a moving 3D object with a significant size, or just a phantom caused by shadows or highlights. A simple classification scheme is currently implemented to decide for an alarm candidate in case of relevant object size, but much more complex and flexible solutions are possible, to recognize all the relevant objects in the scene and achieve much more robust alarm detection performance.


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    Titel :

    3DMODS: 3D moving obstacle detection system


    Beteiligte:
    Garibotto, G. (Autor:in) / Corvi, M. (Autor:in) / Cibei, C. (Autor:in) / Sciarrino, S. (Autor:in)


    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    822311 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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