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A method for global map building from occupancy grids is presented in this paper. Occupancy grids provide a low-level representation of the environment, suitable for autonomous navigation tasks, in urban driving scenarios. The occupancy grids used in our approach are computed with a method that outputs an occupancy grid with three distinct cell types: road, traffic isles and obstacles. First, we perform...
An improved approach for the detection of curbs (border of relevant traffic isles, sidewalks, etc) is presented, in the context of urban driving assistance systems. A rectangular elevation map is built from 3D dense stereo data. Edge detection is applied to the elevation map in order to highlight height variations. Temporal filtering is performed for edge points, based on the ego car motion, and only...
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