汽车牌照自动识别系统的设计与研制  

Design and implementation of automatic vehicle number plate recognition system

作　　者：邹晓涛[1] 陈学佺[1] 

机构地区：[1]中国科学技术大学电子工程与信息科学系,安徽合肥230027

出　　处：《红外与激光工程》2002年第5期415-418,共4页Infrared and Laser Engineering

摘　　要：基于计算机图像处理技术的汽车牌照自动识别系统 ,要求能够将运动中汽车的牌照从复杂背景中准确地提取并识别出来。介绍了所研制的汽车牌照自动识别系统和关键技术 (图像分割与车牌定位、图像二值化和字符提取、车牌字符识别等 )。试验结果显示 ,系统在CeleronⅡ 6 33+12 8M的PC机上 ,对图像尺寸为 76 8× 5 74的 311幅试验图片的识别准确率达到 90 % ,识别时间≤1.5s。The objective of automatic vehicle number plate recognition systems (AVNPRS) is to accurately extract and recognize the vehicle number plate from the complicated background. AVNPRS we developed can realize functions of real time image capturing, number plate segmentation, number plate pre processing and character recognition etc. The experiment results show that the total recognition success rate can achieve 90% with relatively short time cost, about 1.5 (with a total number of 311 experimental images which resolution is 768×574).

关 键 词：汽车牌照 自动识别系统 智能交通系统 图像分割 字符识别 

分 类 号：U491.1[交通运输工程—交通运输规划与管理] TP391.4[交通运输工程—道路与铁道工程]