HIGHWAY MODELING METHOD FOR TRAFFIC LANE BREAKAWAY ALARM DEVICE

摘要

PURPOSE: A highway modeling method for traffic lane breakaway alarm device is provided to realize stable running, by accomplishing a correct highway modeling, although a noise is generated in extracted traffic lane data. CONSTITUTION: A highway modeling method for traffic lane breakaway alarm device is composed fo the steps ;photographing travelling lane and inputting traffic lane image signal(20);removing the noise from the inputted traffic lane image signal(21);making an image of multi-resolution to the traffic lane image signal removing the noise and separating the image of multi-resolution(22);extracting a traffic lane edge while maintaining the separated multi-resolution(23);searching a minimum traffic lane candidate group to the extracted traffic lane edge and modeling highway with nearest straight line drawn by in least square method(24);judging whether the highway modeling is finished(25);calculating a camera parameter according to the camera position, if the highway modeling is finished and calculating real highway width based on distance between pixel on the image coordinate(26);judging whether a vehicle breaks away the traffic lane by the calculated real highway width(27);and generating an alarm, if the vehicle breaks away the traffic lane(27).