A ROAD MARKING ANALYSER AND A METHOD OF ANALYSIS OF ROAD MARKINGS AND AN APPARATUS AND METHOD FOR DETECTING VEHICLE WEAVE
First Claim
Patent Images
1. A road marking condition analyser, comprising:
- a light source arranged to illuminate a road, anda camera directed or arranged to view vertically downward in a direction substantially perpendicular to a surface of the road and arranged to capture an image of the road and one or more road markings on the road; and
a processor arranged to process the image to determine a quality of the one or more road markings by detecting road markings in the image and forming measurements of luminance or brightness of the road markings in the image.
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Accused Products
Abstract
An apparatus is provided that is operable as a road marking analyser, comprising a light source arranged to illuminate a road, a camera directed or arranged to view vertically downward in a direction substantially perpendicular to a surface of the road and arranged to capture an image of one or more road markings on the road and a processor arranged to output the captured image to a memory and/or process the image to determine a condition of the one or more road markings.
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Citations
39 Claims
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1. A road marking condition analyser, comprising:
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a light source arranged to illuminate a road, and a camera directed or arranged to view vertically downward in a direction substantially perpendicular to a surface of the road and arranged to capture an image of the road and one or more road markings on the road; and a processor arranged to process the image to determine a quality of the one or more road markings by detecting road markings in the image and forming measurements of luminance or brightness of the road markings in the image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of analysing the condition of road markings, comprising:
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while travelling along a road in a vehicle, illuminating one or more road markings; capturing an image of the road with a camera where the image may contain one or more road markings, the camera being directed vertically downward substantially perpendicular to the surface of the road; and storing the captured image of the one or more road markings for processing or processing the captured image to detect road marking in the image and to determine the quality of the one or more road markings. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A vehicle weave detector, comprising:
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a light source arranged to illuminate a road; a detector directed vertically downward in a direction substantially perpendicular to a surface of the road and arranged to capture reflected light from the road; and a processor arranged to; generate images of the road from the reflected light; detect a position of one or more road markings in each image; and compare the position of the one or more road markings in subsequent images to generate a measure of weave of a vehicle relative to the road. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method of detecting vehicle weave, comprising:
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while travelling along a road in a vehicle, illuminating a road; capturing reflected light from the one or more road markings with a detector, the detector directed vertically downward in a direction substantially perpendicular to a surface of the road; generating images of the road from the reflected light; detecting a position of one or more road markings in each image; and comparing the position of the one or more road markings in subsequent images to generate a measure of weave of a vehicle relative to the road. - View Dependent Claims (36, 37, 38, 39)
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Specification