This paper presents a mobile mapping system that aims at automatic detection of traffic infrastructure from image sequences. The visual information will be georeferenced with GPS/INS information to represent a most realistic model of the environment in a GIS database. The integration of innovative methods such as vertical structure segmentation and probabilistic object matching provides a qualified framework for the detection of arbitrary traffic infrastructure. The detection of infrastructure starts with a segmentation of the video frame into regions of interest by exploiting track localization and a-priori knowledge about the visual scene. A further step concerns the extraction of 3D structure and the segmentation of its associated distance map w.r.t. vertically accentuated objects. Color information derived from learned classification filters contributes to a characterization of class-specific support regions for further processing. Eventually, traffic signs and lights are robustly identified by probabilistic matching using a RBF neural network that was trained from real imagery of traffic infrastructure.


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    Titel :

    Mobile detection of traffic infrastructure


    Beteiligte:
    Paletta, L. (Autor:in) / Paar, G. (Autor:in) / Wimmer, A. (Autor:in)


    Erscheinungsdatum :

    2001


    Format / Umfang :

    6 Seiten, 16 Quellen




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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