Obstacle detecting systems at level crossings are now used to prevent crashes between trains and large automobiles, which are not applicable to two-wheelers or pedestrians. However, two-wheelers or pedestrians are also frequently involved in accidents at level crossings. To address these problems, we have been developing a new obstacle detection system using stereo cameras and image processing technology. The stereo camera is a more robust system than a single camera system because it measures the three-dimensional shape of obstacles on crossing. This paper describes the development of the obstacle detection system using stereo cameras and its field test results.

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