Vehicle position recognition apparatus and method using image recognition information

摘要

Provided is a GPS correction system and method which corrects position information obtained from a low-precision GPS device using image recognition information. The GPS correction system using image recognition system includes: a GPS module; an image recognition device having a line recognition function; a road map storage unit configured to store road map information including line characteristic information or a road map receiving unit configured to receive the road map information; and an information processing device configured to compare the line recognition information acquired through the image recognition device to the line characteristic information, correct a current position measured by the GPS module, and calculate traveling lane information.

主权项

1. A GPS correction system using image recognition information, comprising:
a GPS module; an image recognition device acquiring line recognition information of a traveling lane on which a vehicle is currently traveling using a line recognition function, the line recognition information including number, color and shape of lines on both sides of the traveling lane; a road map hardware storage unit storing road map information including line characteristic information, the line characteristic information including number, color and shape of lines of traffic lanes; and an information processing device recognizing a current position of the vehicle, by comparing the line recognition information acquired through the image recognition device with the road map information, the information processing device including an information matching unit recognizing the current position of the vehicle by matching the lines on both sides of the traveling lane acquired by the line recognition information, collectively, with sets of two adjoining lines stored in the road map information, each set of the two adjoining lines forming a traffic lane and being spaced apart by a traffic lane width, wherein when the lines on both sides of the traveling lane are matched in the number, color and shape with a unique one set of two adjoining lines stored in the road map information, the information matching unit recognizes the traffic lane corresponding to the unique one set of two lines as the current position of the vehicle, and a lane change tracing unit calculating the current position of the vehicle by using a former current position of the vehicle most recently recognized by the information matching unit and a lane change record of the vehicle from the image recognition device when the lines on both sides of the traveling lane, collectively, are matched in the number, color and shape with more than one set of two adjoining lines stored in the road map information; wherein the information processing device further comprises a longitudinal position estimation unit configured to calculate a head angle between a line of the traveling lane and a traveling direction of the vehicle from the image recognition information and estimate a longitudinal position, when a signal received by the GPS module is lost.