MAP INFORMATION CORRECTION APPARATUS, MOBILE OBJECT, MAP INFORMATION CORRECTION SYSTEM, MAP INFORMATION CORRECTION METHOD, CONTROL CIRCUIT, AND NON-TRANSITORY STORAGE MEDIUM

A map information correction apparatus includes: a feature point priority determination unit that determines, based on a priority table, a priority for a feature point of own mobile object surrounding information; a feature pair priority determination unit that gives, when there is one or more feature pairs, a priority to the feature pair, based on an own mobile object surrounding information priority of the feature pair and a map information priority of the feature pair, the feature pair being a pair of an own mobile object surrounding information feature point and a received map information feature point that correspond to each other; an error calculation unit that calculates an error in the map information, based on a high-priority own mobile object surrounding information feature point and a high-priority map information feature point, the high-priority own mobile object surrounding information feature point being the own mobile object surrounding information feature point, the high-priority map information feature point being the map information feature point, the own mobile object surrounding information feature point and the map information feature point forming the feature pair of a high priority; and a correction unit that corrects the map information using the error.