Lane boundary detector
First Claim
1. A boundary detector comprising:
- a camera that is mounted on a vehicle and picks up an image of a road surface;
a candidate line detecting unit that detects a candidate line of a lane boundary position drawn on the road surface based on image data of a predetermined detection time period acquired from the image supplied from the camera;
a lane boundary position selecting unit that selects a lane boundary position based on the candidate line of the lane boundary position detected by the candidate line detecting unit;
a branch lane boundary position selecting unit that selects a lane boundary position of a branch lane that diverts from a main lane based on the candidate line of the lane boundary position detected by the candidate line detecting unit; and
a branch processing unit that sets a branch process mode in which the detection time period is short without adopting the selected lane boundary position of the branch lane when the branch lane boundary position selecting unit selects the lane boundary position of the branch lane.
1 Assignment
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Accused Products
Abstract
A boundary detector includes a candidate line detecting unit that detects a candidate line of a lane boundary position drawn on a road surface based on image data of a predetermined detection time period acquired from a camera. The detector also includes a lane boundary position selecting unit that selects a lane boundary position based on the candidate line; a branch lane boundary position selecting unit that selects a lane boundary position of a branch lane that diverts from a main lane based on the candidate line; and a branch processing unit that sets a branch process mode in which the detection time period is short without using the selected lane boundary position of the branch lane when the branch lane boundary position selecting unit selects the lane boundary position of the branch lane.
41 Citations
12 Claims
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1. A boundary detector comprising:
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a camera that is mounted on a vehicle and picks up an image of a road surface;
a candidate line detecting unit that detects a candidate line of a lane boundary position drawn on the road surface based on image data of a predetermined detection time period acquired from the image supplied from the camera;
a lane boundary position selecting unit that selects a lane boundary position based on the candidate line of the lane boundary position detected by the candidate line detecting unit;
a branch lane boundary position selecting unit that selects a lane boundary position of a branch lane that diverts from a main lane based on the candidate line of the lane boundary position detected by the candidate line detecting unit; and
a branch processing unit that sets a branch process mode in which the detection time period is short without adopting the selected lane boundary position of the branch lane when the branch lane boundary position selecting unit selects the lane boundary position of the branch lane. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A boundary detecting method comprising:
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detecting a candidate line of a lane boundary position drawn on a road surface based on image data of a predetermined detection time period acquired from an image supplied from a camera that is mounted on a vehicle and that picks up the image of the road surface;
selecting a lane boundary position based on the candidate line of the detected lane boundary position;
selecting a lane boundary position of a branch lane that diverts from a main lane based on the candidate line of the detected lane boundary position; and
setting a branch process mode in which the detection time period is short without adopting the selected lane boundary position of the branch lane when the lane boundary position of the branch lane is selected. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification