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Abstract Autonomous vehicles as well as sophisticated driver assistance systems use stereo vision to perceive their environment in 3D. At least two Million 3D points will be delivered by next generation automotive stereo vision systems. In order to cope with this huge amount of data in real-time, we developed a medium level representation, named Stixel world. This representation condenses the relevant scene information by three orders of magnitude. Since traffic scenes are dominated by planar horizontal and vertical surfaces our representation approximates the three-dimensional scene by means of thin planar rectangles called Stixel. This survey paper summarizes the progress of the Stixel world. The evolution started with a rather simple representation based on a flat world assumption. A major break-through was achieved by introducing deep-learning that allows to incorporate rich semantic information. In its most recent form, the Stixel world encodes geometric, semantic and motion cues and is capable to handle even steepest roads in San Francisco.
Schneider et al. (Sat,) studied this question.
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