Lane deviation prevention apparatus
First Claim
1. A lane deviation prevention apparatus mounted on a vehicle, comprising:
- image pickup means for photographing a front image in front of the vehicle;
driving lane shape recognition means for detecting a lane mark on a road included in the front image within a lane mark detection distance range and for recognizing a shape of a driving lane boundary;
deviation prediction judgment means that judges, based on the shape of the driving lane boundary, whether the vehicle deviates from a driving lane after a deviation prediction time which is previously set and outputs a deviation prevention output in a case where it is judged that the vehicle deviates; and
deviation prevention output means that operates based on the deviation prevention output, wherein a position of the lane mark detection distance range can be adjusted, and the driving lane shape recognition means dynamically sets the position of the lane mark detection distance range in accordance with a vehicle speed of the vehicle and the deviation prediction time.
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Accused Products
Abstract
There is provided a lane deviation prevention apparatus which can make a lane deviation prediction judgment more accurately. The lane deviation prevention apparatus includes driving lane shape recognition means to detect a lane mark on a road included in a front image within a lane mark detection distance range and to recognize a shape of a driving lane boundary, and a deviation prediction judgment means that judges, based on the shape of the driving lane boundary, whether the vehicle deviates from a driving lane after a previously set deviation prediction time and outputs a deviation prevention output in a case where it is judged that the vehicle deviates, and the driving lane shape recognition means dynamically sets the position of the lane mark detection distance range in accordance with a vehicle speed of the vehicle and the deviation prediction time.
36 Citations
6 Claims
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1. A lane deviation prevention apparatus mounted on a vehicle, comprising:
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image pickup means for photographing a front image in front of the vehicle;
driving lane shape recognition means for detecting a lane mark on a road included in the front image within a lane mark detection distance range and for recognizing a shape of a driving lane boundary;
deviation prediction judgment means that judges, based on the shape of the driving lane boundary, whether the vehicle deviates from a driving lane after a deviation prediction time which is previously set and outputs a deviation prevention output in a case where it is judged that the vehicle deviates; and
deviation prevention output means that operates based on the deviation prevention output, wherein a position of the lane mark detection distance range can be adjusted, and the driving lane shape recognition means dynamically sets the position of the lane mark detection distance range in accordance with a vehicle speed of the vehicle and the deviation prediction time. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification