| 摘要 |
An off-lane alarm apparatus quantizes an image signal provided from a line camera mounted on a car roof is into a corresponding binary image by an image processing device to detect a lane on a road surface, so that an alarm is generated when an off-lane state of the car from the lane is detected. After mounting a line camera on a car, markers preset at predetermined positions outside of the car are shot and preliminarily stored as binary image signals and the positional information is used as car side positional information for alarm determinations.
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