The invention provides an image processing system capable of precisely
locating the positions of the light spots covering near headlights
through far tail lamps by using one camera. The invention, discriminating
the headlights and tail lamps from noise lights such as a traffic light,
streetlight, and vending machine, enhances the vehicle detection
performance at night. The system includes an image input means that
inputs images in front of a vehicle, an image analysis means that
analyzes the images inputted by the image input means. The image input
means has a means of photographing more than two images with different
exposures. The image analysis means analyzes the images photographed by
the image input means to transform them into the position information of
the vehicles traveling in front.