Method and apparatus for detecting vehicle distance
First Claim
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1. A method for a vehicle equipped with a radar for detecting distance to a preceding vehicle, comprising:
- receiving a signal of a road image from a camera;
extracting lane markers from the road image;
adjusting a scanning angle of a radar based on the extracted lane markers; and
calculating a distance to a preceding vehicle using reflected waves of a radar beam scanned at the adjusted scanning angle.
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Abstract
Stableness in detecting the distance to a preceding vehicle by calculating the distance to the preceding vehicle using reflected waves of a radar beam scanned at a scanning angle that is adjusted based on lane markers extracted from a road image obtained by a camera.
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Citations
15 Claims
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1. A method for a vehicle equipped with a radar for detecting distance to a preceding vehicle, comprising:
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receiving a signal of a road image from a camera;
extracting lane markers from the road image;
adjusting a scanning angle of a radar based on the extracted lane markers; and
calculating a distance to a preceding vehicle using reflected waves of a radar beam scanned at the adjusted scanning angle. - View Dependent Claims (2, 3, 4)
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5. An apparatus for a vehicle for detecting distance to a preceding vehicle, the apparatus comprising:
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a radar for scanning a radar beam from the vehicle;
a scanning angle adjustor for adjusting a scanning angle of the radar;
a camera for acquiring a road image; and
an electronic control unit activated by predetermined software wherein said predetermined software comprises instructions for;
receiving a signal of a road image from the camera;
extracting lane markers from the road image;
adjusting the scanning angle of the radar based on the extracted lane markers; and
calculating a distance to the preceding vehicle using reflected waves of the radar beam scanned at the adjusted scanning angle. - View Dependent Claims (6, 7, 8)
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9. A method for calculating distance to a preceding vehicle, comprising:
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acquiring an image of a forthcoming road;
adjusting a scanning angle of a radar in accordance with said image of a forthcoming road; and
calculating a distance to a preceding vehicle based on reflected radar waves from said radar projected at said adjusted scanning angle. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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Specification