| 摘要 |
In a boundary line detection system installed in a vehicle, an edge-point extracting unit extracts a plurality of edge points from an image of a road. A noise determining unit determines whether a number of edge points in the plurality of edge points are aligned in a direction corresponding to a vertical direction of the road. The number of edge points have an interval therebetween equal to or smaller than a preset interval. When it is determined that the number of edge points are aligned in the direction corresponding to the vertical direction of the road with the interval of the number of edge points being equal to or smaller than the preset interval, the noise determining unit determines that the number of edge points as noises.
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