This paper presents a generic framework for curb detection and reconstruction in the context of driver assistance systems. Based on a 3D point cloud, we estimate the parameters of a 3D curb model, incorporating also the curb adjacent surfaces, e.g. street and sidewalk. We apply an iterative two step approach. First, the measured 3D points, e.g., obtained from dense stereo vision, are assigned to the curb adjacent surfaces using loopy belief propagation on a Conditional Random Field. Based on this result, we reconstruct the surfaces and in particular the curb. Our system is not limited to straight-line curbs, i.e. it is able to deal with curbs of different curvature and varying height. The proposed algorithm runs in real-time on our demonstrator vehicle and is evaluated in urban real-world scenarios. It yields highly accurate results even for low curbs up to 20m distance.


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    Title :

    Curb reconstruction using Conditional Random Fields


    Contributors:
    Siegemund, J (author) / Pfeiffer, D (author) / Franke, U (author) / Förstner, W (author)


    Publication date :

    2010-06-01


    Size :

    2041283 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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