Work in simultaneous localisation and map-building ("SLAM") for mobile robots has focused on the simplified case in which a robot is considered to move in two dimensions on a ground plane. While this is often a good approximation, a large number of real-world applications require robots to move around terrain which has significant slopes and undulations, and it is desirable that these robots too should be able to estimate their locations by building maps of natural features. We describe a real-time EKF-based-SLAM system permitting unconstrained 3D localisation, and in particular develop models for the motion of a wheeled robot in the presence of unknown slope variations. In a fully automatic implementation, our robot observes visual point features using fixating stereo vision and builds a sparse map on-the-fly. Combining this visual measurement with information from odometry and a roll/pitch accelerometer sensor, the robot performs accurate, repeatable localisation while traversing an undulating course.


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    Title :

    3D simultaneous localisation and map-building using active vision for a robot moving on undulating terrain


    Contributors:
    Davison, A.J. (author) / Kita, N. (author)


    Publication date :

    2001-01-01


    Size :

    907873 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    3D Simultaneous Localisation and Map-Building Using Active Vision for a Robot Moving on Undulating Terrain

    Davison, A. J. / Kita, N. / IEEE | British Library Conference Proceedings | 2001


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