An automatic parking system relies on precise estimation of parking space geometry. This paper proposes the use of a hierarchical three dimensional occupancy grid for the detection of parking spaces. The occupancy grid covers the environment representation of the static world. A hierarchical design allows dynamic selection of the level of detail. Applying a three-dimensional grid provides the additional benefit of supporting a variety of other functions including height estimation using a single environment representation type. The presented approach derives the distance to obstacles and walls and thus is able to represent the free space that forms parking spaces. In a second step, the dimensions of the parking space are calculated. For evaluation, real parking spaces are detected and estimated using short range radar sensors. The calculated dimensions are compared to the ground truth.


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    Title :

    Parking space detection with hierarchical dynamic occupancy grids


    Contributors:


    Publication date :

    2011-06-01


    Size :

    1394930 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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