A traffic flow detection system based on visual vehicle optical characteristic recognition and matching

The invention relates to a traffic flow detection system based on visual vehicle optical characteristic recognition and matching applying the mechanical visual technique. By the acquisition of the images of vehicle driving on two or more lanes of different position of any section of urban traffic roads or high-grade highways, the optical characteristics of the vehicle can be recognized. By the acquisition conducted at various positions and the matching result of the recognized vehicle optical characteristics, the vehicular passing capacity reflected by the technical indexes including traffic flow, density, driving speed, distance, reverse driving, over speed and retention can be calculated.