A rear-view monitor for use in vehicles is provided, in which contained are vehicle-mounted image pickup means for picking up images of road in the rear of one's own vehicle at every fixed time; and detection means for detecting an overtaking vehicle by processing road images obtained by the image pickup...http://www.google.fr/patents/US6218960?utm_source=gb-gplus-shareBrevet US6218960 - Rear-view monitor for use in vehicles
