The virtual white cane is a range sensing device based on active triangulation, that can measure distances at a rate of 15 measurements/second. A blind person can use this device for sensing the environment, pointing it as if it was a flashlight. Beside measuring distances, this device can detect surface discontinuities, such as the foot of a wall, a step, or a drop-off. This is obtained by analyzing the range data collected as the user swings the device around, tracking planar patches and finding discontinuities. In this paper we briefly describe the range sensing device, and present an online surface tracking algorithm, based on a Jump-Markov model. We show experimental results proving the robustness of the tracking system in real-world conditions.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Dynamic environment exploration using a virtual white cane


    Contributors:
    Yuan, D. (author) / Manduchi, R. (author)


    Publication date :

    2005-01-01


    Size :

    464879 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    The Development of a Virtual White Cane Using a Haptic Interface

    Innala Ahlmark, Daniel | BASE | 2014

    Free access

    A Navigation System Using a White Cane Which Detects Colored Guide Line

    Magatani, K. / Kaneko, Y. / Harada, T. et al. | British Library Online Contents | 2005


    WHITE CANE USER NOTIFICATION SYSTEM IN STATION YARD FOR STATION EMPLOYEE

    MATSUMURA TAKAYOSHI | European Patent Office | 2022

    Free access

    SMART CANE

    MORITA YASUO | European Patent Office | 2023

    Free access

    SYSTEMS AND METHODS FOR WHITE CANE DETECTION ON A MOTORIZED MOBILE SYSTEM

    DEAN JERED H / DEAN BARRY G / PRESTON DAN A et al. | European Patent Office | 2024

    Free access