Parking assistance system

A parking assistance system is mounted in a vehicle, and comprises an image pick-up (10) with a single camera, an image processing device (20), a display (30), a steering angle sensor (40), a wheel speed sensor (50), and a pulse counter (60). An ADC (21) subjects two analog images picked up by the image pick-up (10) at different location to A/D conversion, and sends those to frame memories (22) and (23). A CPU (24) uses the digital image data and the transition data of the vehicle so as to calculate object data and a distance from the vehicle to the 3D object. An image thus obtained is then converted into a view from the above. The view from the above is stored in frame memory (27), and outputted to the display (30) under the control of a controller (28) for display.