Patent attributes
Images captured by multiple cameras installed on a vehicle are combined, and an image of the ground is projected onto a plane and is displayed around a vehicle display portion. In the vehicle display portion, actual images of portions of the vehicle may be displayed in a front area, a rear area, a left-side area, and/or a right-side area. A vehicle illustration image is displayed in the area surrounded by the actual images of the portions of the vehicle. Since the vehicle actual images are displayed at the perimeter of the vehicle display portion, it is easy for an operator who views a display screen to recognize the positional relationships between the perimeter of the vehicle and obstacles outside the vehicle perimeter.