License plate recognition technology is an important part of an intelligent transport system, widely used in highway tolls, unregistered vehicle monitoring, vehicle parking management, and other important occasions. Typical of the license plate recognition, algorithm is divided into three components, license plate localization, character segmentation, and character recognition. This paper summarizes the key technology of license plate recognition algorithm, and analyses the difficulties of improving the recognition rate. According to features of license plates, license plate character recognition methods in recent years were summarized and put forward, on the basis of the existing methods, improving system performance and accuracy.
展开▼
