CHANGE POINT DETECTION DEVICE AND MAP INFORMATION DISTRIBUTION SYSTEM

A change point detection device includes a memory that stores map information representing a structure associated with a traveling condition on and around a road, an object detection unit that detects a shielding object hiding the structure from an image acquired by an in-vehicle camera mounted on a vehicle and representing an environment around the vehicle a collation unit that eliminates the structure hidden by the shielding object in the map information, collates the image with the map information, and calculates a coincidence degree between the image and the map information, and a change point detection unit that determines, when the coincidence degree is less than or equal to a predetermined threshold value, that the structure represented in the image has a change point different from the corresponding structure represented in the map information.