基于数码设备的二代身份证号码识别系统  

Second-generation ID Number Recognition System Based on Digital Devices

作　　者：赵兴旺[1] 李天阳[1] 汪亮[1] 周璟[1] 

机构地区：[1]国电南瑞科技股份有限公司,江苏南京211106

出　　处：《计算机与现代化》2014年第6期132-136,共5页Computer and Modernization

基　　金：国家电网公司科技项目(20140101)

摘　　要：研究基于数码设备(如手机、Pad等)的第二代身份证号码识别技术。对于预处理,提出基于Sobel算子边缘检测的身份证图像竖拍或倒拍的判断方法;对于字符分割,基于沈俊边缘检测的边缘二值图像,提出改进的垂直投影法,有效地解决了粘连体字符的切分;对于字符识别,提取模糊网格八方向梯度特征,采用K近邻分类器的方法进行分类识别。实验结果表明,本系统能准确定位和识别二代身份证号码,具有较高的识别准确率,具有一般通用性。This paper studies second-generation ID number recognition technology based on digital devices. For the preprocess- ing, a method based on Sobel operator template is provided to judge ID image vertical shooting or down shooting. For the charac- ters segmentation, an improved vertical projection method based on the Shenjun binary edge image is provided, which solves the segmentation of adhesion character effectively. For the characters recognition, the method of the blur grid eight-direction gradient feature combined with K-nearest neighbor classifier is used for classification. After many experiments, the results show that this system can accurately locate and recognize ID number for its high recognition accuracy and it is of general versatility.

关 键 词：二代身份证号码识别 预处理 边缘检测 HOUGH变换 分割 识别 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]