A Study On A Vision-based Roadway Departure Warning System
Date Issued
2004
Date
2004
Author(s)
Chuang, Shu-Yun
DOI
zh-TW
Abstract
Recently, intelligent vehicle systems have been developed to reduce and/ or avoid car collisions. Accurate detections of the objects on the road and the relative positions of vehicles to the lane are very important in the development of intelligent vehicle. This system is vision-based. The road images are captured by a camera mounted in a car. The domain of interest will be decided first from each image, and then the lane markers on roads are detected by image processing. An Inverse Perspective Mapping（IPM）is used to transform the image coordinates into world coordinates. Then edge detection is utilized to eliminate the portions of non-markers from the image and to save the portions of lane markers. Finally, the relative position between the lane and the vehicles can be determined to see if the vehicle is safe or not. If the situation is probably dangerous, then a warning is provided to the driver.
Subjects
警示
車道偏離
daparture
warning
Type
thesis
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