We describe an implemented technique for generating event models automatically based on qualitative reasoning and a statistical analysis of video input. Using an existing tracking program which generates labelled contours for objects in every frame, the view from a fixed camera is partitioned into semantically relevant regions based on the paths followed by moving objects. The paths are indexed with temporal information so objects moving along the same path at different speeds can be distinguished. Using a notion of proximity based on the speed of the moving objects and qualitative spatial reasoning techniques, event models describing the behaviour of pairs of objects can be built, again using statistical methods. The system has been tested on a traffic domain and learns various event models expressed in the qualitative calculus which represent human observable events. The system can then be used to recognise subsequent selected event occurrences or unusual behaviours.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Building qualitative event models automatically from visual input


    Beteiligte:
    Fernyhough, J. (Autor:in) / Cohn, A.G. (Autor:in) / Hogg, D.C. (Autor:in)


    Erscheinungsdatum :

    01.01.1998


    Format / Umfang :

    771790 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Building Qualitative Event Models Automatically from Visual Input

    Fernyhough, J. / Cohn, A. G. / Hogg, D. C. et al. | British Library Conference Proceedings | 1998


    Constructing qualitative event models automatically from video input

    Fernyhough, J. / Cohn, A.G. / Hogg, D.C. | British Library Online Contents | 2000


    Automatically building appearance models from image sequences using salient features

    Walker, K. N. / Cootes, T. F. / Taylor, C. J. | British Library Online Contents | 2002


    Motion understanding from qualitative visual dynamics

    Shavit, E. / Jepson, A. | IEEE | 1993


    Motion Understanding from Qualitative Visual Dynamics

    Shavit, E. / Jepson, A. / IEEE; Computer Society Technical Committee on Pattern Analysis and Machine Intelligence | British Library Conference Proceedings | 1993