1. An object recognition device comprising: a radar that detects objects in the vicinity of a vehicle; a camera that detects objects by capturing an image of the vicinity of the vehicle; and an identical object recognition unit configured to recognize that an object detected by the radar and an object detected by the camera are the same object when the objects are present within a predetermined position range, wherein the identical object recognition unit determines whether the objects are the same object by reducing the predetermined position range when detection using the radar or the camera is interrupted and then detection is started again.