Relevancy determination systems and methods for traffic signs

Abstract

A system for navigating a host vehicle wherein the system receives at least one image captured by a front view camera of the host vehicle (2702); analyses the at least one image to detect a representation of a traffic sign in an environment of the host vehicle (2704); determines a relevancy of the traffic sign to the host vehicle (2706), wherein the relevancy of the traffic sign to the host vehicle is determined based on a trajectory of the host vehicle relative to a location of the traffic sign; and causes the host vehicle to implement at least one navigational action based on the relevancy (2708). A second alternative system detects a speed limit sign, and determines the sign to be not relevant after the host vehicle passes the speed limit sign by a predetermined distance. A third alternative system includes a representation of a traffic sign that is at least partially occluded. A fourth alternative system generates a top view image based on analysing a plurality of images captured by the front view camera of a host vehicle and provides the top down view to a trained system to determine the relevancy of a traffic sign. [Fig 27]