This paper describes a fast as well as simple method for measurement of the length of pedestrian crossings using a single camera for the purpose of a travel aid for blind people. In a crossing, the usual black road surface is painted with constant width periodic white lines. In Japan, this width is 45 cm. The crossing region as well as its length is detected using this concept. At first, the crossing direction is determined from the power spectrum using fast Fourier transform. The periodic white and black bands are detected using integration along the crossing direction and differentiation of the integral data perpendicular to the crossing direction. Then the crossing length is calculated using the number of white and black bands in the crossing region. Experiment is performed using real road scenes with pedestrian crossing. The technique is successful in measuring the length of the crossing with high accuracy if the image resolution is good and the white paintings on the crossing are fine.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Measurement of the length of pedestrian crossings - a navigational aid for blind people


    Beteiligte:
    Uddin, M.S. (Autor:in) / Shioyama, T. (Autor:in)


    Erscheinungsdatum :

    2004-01-01


    Format / Umfang :

    565770 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Detection of Pedestrian Crossing and Measurement of Crossing Length - an Image-Based Navigational Aid for Blind People

    Uddin, M. S. / Shioyama, T. / IEEE | British Library Conference Proceedings | 2005



    Measurement of the length of pedestrian crossings from image data

    Uddin, Mohammad S. / Shioyama, Tadayoshi | SPIE | 2004


    Pedestrian crossings for the visually impaired people

    Barbara Rymsza / Krzysztof Kaperczak | DOAJ | 2022

    Freier Zugriff

    Pedestrian Behavior at Signalized Pedestrian Crossings

    Lipovac, Krsto / Vujanic, Milan / Maric, Bojan et al. | ASCE | 2012