通过车牌提取、图像预处理、特征提取、车牌字符识别等技术，识别车辆牌号，目前的技术水平为字母和数字的识别率可达到96%，汉字的识别率可达到95%。(Through the license plate extraction, image preprocessing, feature extraction, character recognition of license plate recognition technology, vehicle brands, the current level of technology for letter and digit recognition rate can reach 96%, Chinese characters recognition rate can reach 95%.)