目前世界各国都在进行适用于本国汽车牌照的自动识别研究，美、日、韩等国

已有相关系统（基于传感器）问世。引进这些系统费用比较高、而且由于各国车牌

和实际的交通环境不同，引进的系统往往无法满足我国城市的需求，而国内市场上

虽然已有产品投入使用，但是在后续处理时很大程度上仍然需要人工识别，所以对

车牌识别技术的研究依然是目前高科技领域的热门课题之一。车牌识别系统的成功

设计、开发和应用具有相当大的社会效益、经济效益和学术意义。

-Countries around the world are doing for their automatic license plate recognition, the United States, Japan, Korea and other countries have been related systems (sensor-based) come out. The introduction of the relatively high cost of these systems, and because national license plates and actual traffic environment is different, the introduction of the system is often unable to meet the needs of the city, while the domestic market, although existing products in use, but in the subsequent processing is still largely require manual identification, so the license plate recognition technology research is still currently a hot topic in high-tech fields. License Plate Recognition System for the successful design, development and application of considerable social, economic and academic significance.