1. A device for calculating one or more camera parameters of a camera mounted on a moving body for converting a scenery image captured by the camera of a scenery including a road on which the moving body moves into an image for navigation, the one or more camera parameters representing a height of a mount position of the camera and a direction of the camera, the device comprising: a location information acquisition unit that acquires location information about a current location of the moving body; a road width information acquisition unit that acquires road data corresponding to the current location based on the location information and acquires road width information relating to a width of the road on which the moving body moves at the current location from the road data; a scenery image acquisition unit that acquires the scenery image from the camera; and a camera parameter calibration unit that performs calibration calculation of the camera parameters based on the scenery image and the road width information.