Vehicle position estimation device and method thereof

Abstract

Provided is a vehicle position estimation device and method thereof, in which distance information of each pixel size and pixel position information of traffic signs (signal lights, traffic display boards, etc.) When the GPS (Global Positioning System) information of the vehicle cannot be received or the accuracy is reduced, the pixel size and position of the traffic sign on the image for estimating the relative position from the traffic sign to the vehicle are used. The vehicle position estimation device of the present invention includes: a traffic sign information providing component, a traffic sign recognition component, a distance extraction component, a lane correction component, and a vehicle position estimation component.

Description

technical field [0001] The present invention relates to a vehicle position estimating device and method thereof using the pixel size and position of a traffic sign on an image, and more specifically, to a vehicle position estimation method using a traffic sign (signal light or traffic display board, etc.) adjacent to an intersection appearing on an image The distance information of each pixel size and the position information of the pixel can be used to estimate the distance from the traffic sign to the vehicle when the GPS (Global Positioning System) information of the vehicle cannot be received in the adjacent area of ​​the intersection, or the accuracy decreases. A device and method for estimating vehicle position based on the relative position, pixel size and position of a traffic sign on an image. Background technique [0002] Generally, a vehicle navigation system uses a map matching method or dead reckoning to display the current position information of the vehicle at...

AI Technical Summary

Problems solved by technology

However, in places such as densely built areas and tunnels, where GPS reception is not possible, or the accuracy of GPS is significantly reduced, it is almost impossible to correct the accuracy of the vehicle's heading, especially in map matching.

Furthermore, even in an area where GPS signal reception is good, the vehicle position displayed on the navigation map and the actual vehicle position may differ from each other because the position of the vehicle is matched and displayed on the center line of the road during general map matching. The problem

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