Abstract: A peripheral image display device is configured to: acquire wheel speeds of a vehicle; determine a slip state or a non-slip state of a wheel of the vehicle based on the acquired wheel speeds; acquire multiple camera images from respective cameras; store, as a past image, the camera image indicating a range in a traveling direction of the vehicle; generate a peripheral image indicating a periphery of the vehicle by synthesizing the camera images, display the peripheral image on a display. In the non-slip state, the peripheral image display device displays a transparent image showing, in a transparent manner, a portion under a floor of the vehicle using the past image selected based on current wheel speeds is. In the slip state, the peripheral image display device deactivates the display of the transparent image.

Abstract: A peripheral image display device is configured to: acquire wheel speeds of a vehicle; determine a slip state or a non-slip state of a wheel of the vehicle based on the acquired wheel speeds; acquire multiple camera images from respective cameras; store, as a past image, the camera image indicating a range in a traveling direction of the vehicle; generate a peripheral image indicating a periphery of the vehicle by synthesizing the camera images, display the peripheral image on a display. In the non-slip state, the peripheral image display device displays a transparent image showing, in a transparent manner, a portion under a floor of the vehicle using the past image selected based on current wheel speeds is. In the slip state, the peripheral image display device deactivates the display of the transparent image.

Abstract: A shift determining part of an image display system determines a traveling direction of a vehicle. A composite image generator generates a composite image that shows a periphery of the vehicle and an area that is in a direction opposite to the determined traveling direction of the vehicle in a seamless manner. The periphery is viewed from a virtual viewpoint that is set looking down at the vehicle. A display displays a display image including the composite image. Since the display image includes the composite image that shows the area that is in the direction opposite to the determined traveling direction of the vehicle, a user can notice an object that exists in the direction opposite to the traveling direction of the vehicle by looking at the display image.