基于ARM9的指纹识别系统设计

The ARM9-based Design of the Fingerprint Identification System

随着信息技术的快速发展,传统的密码保护已经不能适应信息社会的发展要求。而指纹识别技术具有唯一且不可复制的特性,在日常生产生活中广泛应用,在信息安全领域占据主导地位。文章从指纹识别系统的应用角度着手研究。主要从以下几个方面进行阐述:指纹采集,通过指纹采集模块采集用户指纹图像,上传至指纹处理模块中;指纹处理,由指纹处理模块对指纹图像进行特征提取,在添加指纹时将提取的特征值存入指纹库中,当需要指纹验证的时候,将用户的指纹与指纹库中的指纹进行特征匹配,然后将匹配结果上传至ARM处理器;结果显示,由ARM处理器将指纹匹配的结果通过LCD液晶屏显示,以确定是否允许用户进入系统。

With the application of network technology,the traditional information security protection has not been adapted to the development of information society.Fingerprint recognition technology just to meet the needs of the development of network society,which will eventually occupy the leading position of information security field.This article,from the perspective of information security,mainly carried out to study as following：Fingerprint collecting,fingerprint collection module used to capture the user fingerprint＇s image,and upload it to the fingerprint processing module;Fingerprint processing,to extract feature from fingerprint＇s image through processing module,when add fingerprint characteristics,it will be extracted into the fingerprint library,while needding for fingerprint authentication,match the user＇s fingerprint with the fingerprint database of the feature,and then upload the results to the ARM processor;Results showing,display the results of fingerprint matching on LCD screen by the ARM processor,which to allow users to accessing to the system or not.