METHODS AND SYSTEMS FOR MAP DATABASE UPDATE BASED ON ROAD SIGN PRESENCE

摘要

A method, a system, and a computer program product may be provided for updating a map database to indicate presence status of a road sign. The method may include receiving a road sign observation from at least one vehicle. The method may further include determining a road sign confidence score based on the received road sign observation, wherein the road sign observation comprises at least one of a positive road sign observation and a negative road sign observation. Additionally, the method may include updating the map database to indicate the presence status of the road sign based on the road sign confidence score being above a predetermined threshold, wherein the confidence score is based on at least one of the positive road sign observation and the negative road sign observation.