In this paper, we present a stereovision algorithm for real-time 6DoF ego-motion estimation, which integrates image intensity information and 3D stereo data in the well-known Iterative Closest Point (ICP) scheme. The proposed method addresses a basic problem of standard ICP, i.e. its inability to perform the segmentation of data points and to deal with large displacements. Neither a-priori knowledge of the motion nor inputs from other sensors are required, while the only assumption is that the scene always contains visually distinctive features which can be tracked over subsequent stereo pairs. This generates what is usually called Visual Odometry. The paper details the various steps of the algorithm and presents the results of experimental tests performed with an allterrain mobile robot, proving the method to be as accurate as effective for autonomous navigation purposes.


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    Title :

    Stereo-Based Ego-Motion Estimation Using Pixel Tracking and Iterative Closest Point


    Contributors:
    Milella, A. (author) / Siegwart, R. (author)


    Publication date :

    2006-01-01


    Size :

    420131 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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