Research on the Key Technology of Automatic Vehicle Plate Recognition System

The license plate recognition system is one of the important research subjects in modern intelligent transportation systems.This paper mainly studies the edge detection and license plate location in license plate recognition system.License plate edge detection uses the Prewitt operator detection method and license plate location uses the method based on the plate prior knowledge and line scanning.The experimental results show that using the above methods can accurately get the required license plate image region.This algorithm has certain application value.