The disclosed multi-function camera system has: a camera that is affixed to a vehicle component on the side of the vehicle and that films in the lateral direction of the vehicle; a condition determination unit that determines execution conditions of a plurality of function units; an obstacle detection unit that is run on the basis of the determination results of the condition determination unit, and that, by means of image recognition, detects obstacles approaching the vehicle or existing in the vicinity of the vehicle on the basis of the filmed images of the camera; and an individual authentication unit that is run on the basis of the determination results of the condition determination unit, and that, by means of image recognition, authenticates on the basis of the filmed images of the camera as to whether or not a person arriving at the vehicle is a user who has been registered beforehand.