Method and device for lane detection
First Claim
Patent Images
1. A method for lane detection, wherein a digitized color image of a roadway is processed using the following steps:
- evaluating individual color components of the color image;
identifying the colors of markings on the image of the roadway based on the evaluated color components;
identifying the markings on the image of the roadway with having a grayscale value below a grayscale value of the roadway;
setting the grayscale value of the identified markings to a value above the grayscale value of the roadway; and
outputting the image for processing by a lane detection algorithm for monochrome images.
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Abstract
A method for lane detection, wherein a digitized color image of a roadway is processed using the following steps:
- identifying markings on the roadway with a grayscale value below the grayscale value of the roadway (S18),
- setting the grayscale value of the markings thus identified to a value above the grayscale value of the roadway, and
- outputting the image thus processed and modified to be processed by a lane detection algorithm for monochrome images.
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Citations
10 Claims
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1. A method for lane detection, wherein a digitized color image of a roadway is processed using the following steps:
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evaluating individual color components of the color image; identifying the colors of markings on the image of the roadway based on the evaluated color components; identifying the markings on the image of the roadway with having a grayscale value below a grayscale value of the roadway; setting the grayscale value of the identified markings to a value above the grayscale value of the roadway; and outputting the image for processing by a lane detection algorithm for monochrome images. - View Dependent Claims (2, 3, 4, 5)
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6. A method for lane detection, wherein a digitized color image of a roadway is processed using the following steps:
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identifying markings on an image of the roadway with a grayscale value below a grayscale value of the roadway, setting the grayscale value of the identified markings to a value above the grayscale value of the roadway, outputting the image for processing by a lane detection algorithm for monochrome images, wherein prior to the step of identifying markings, an automatic white balance of the color image is performed, and further comprising the step of determining a color difference and, as a function thereof, a correction factor for the white balance, assuming a roadway of neutral color.
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7. A device for lane detection that is configured to process a digitized color image of a roadway as follows:
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evaluating individual color components of the color image; identifying the colors of markings on the image of the roadway based on the evaluated color components; identifying the markings on the image of the roadway with having a grayscale value below a grayscale value of the roadway, setting the grayscale value of the identified markings to a value above the grayscale value of the roadway, and outputting the image for processing by a lane detection algorithm for monochrome images. - View Dependent Claims (8, 9, 10)
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Specification