METHOD AND SYSTEM FOR VIDEO-BASED ROAD CHARACTERIZATION, LANE DETECTION AND DEPARTURE PREVENTION
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United States of America Patent
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Issued Date -
Apr 1, 2010
app pub date -
Jan 23, 2008
filing date -
Jan 23, 2007
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Abandoned
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Abstract
A method and system for video-based road departure warning for a vehicle on a road, is provided. Road departure warning involves receiving an image of a road in front of the vehicle from a video imager, and detecting one or more road markings in the image corresponding to markings on the road. Then, analyzing the characteristics of an image region beyond the detected markings to determine a rating for drivability of the road corresponding to said image region, and detecting the lateral offset of the vehicle relative to the markings on the road based on the detected road markings. A warning signal is generated as function of said lateral offset and said rating.
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