An image generation unit uses a plurality of captured image data and vehicle body data of a vehicle to continuously generate a virtual perspective image indicating the vehicle body of the vehicle and the periphery of the vehicle as seen from a virtual perspective (VP) positioned within the cabin of the vehicle. An image control unit alters the angle in a plan view of the line of sight of the VP in a manner such that the line of sight circles the surroundings of the vehicle, and moves the position of the VP in the front-back direction of the vehicle.