Systems and methods for traffic sign detection

Abstract

A method and system are provided for enhancing map data of a road network by automatically generating a dataset of traffic signs. The method includes receiving telematics data from a plurality of vehicles and receiving map data comprising a plurality of road edges. A point of interest associated with at least one road edge is determined based on a vehicle movement metric derived from the telematics data, such as speed- or stop-related patterns. A sequence of one or more images associated with the point of interest is obtained from an image capture device mounted to a vehicle traversing the point of interest. At least one image from the sequence is analyzed using an image-processing machine learning model to detect a traffic sign, and the detected traffic sign is used to enhance the map data. The approach focuses image analysis on selected portions of the road network and reduces data processing by limiting analysis to relevant images, thereby enabling efficient generation of a reliable, updated dataset of traffic signs.