手指静脉认证采集系统

Acquisition system of finger vein authentication

信息社会对于系统和信息安全性要求的日益增加,促进了生物识别技术的发展.手指静脉识别技术作为新兴的生物识别手段,因其保密性更好,可靠性更高,更实用便捷,被业界称为全球顶尖的生物识别技术.本文在对手指静脉识别技术发展现状的阐述及认证原理分析的基础上,对整个手指静脉认证采集系统进行了设计.整个系统包括静脉图像采集模块和系统控制模块两大部分.其中,静脉图像采集模块用于拍摄识别过程所需要的手指轮廓图像、指腹折痕图像与静脉图像.系统控制模块用于系统控制,以实现感应手指放置、自动拍照和上传图片至PC机等一系列时序动作.通过本系统的设计实现,我们可以得到清晰的手指静脉纹路图像,为计算机后期的认证比对处理提供了可靠而有效的原始数据.

An increasing demand for the system and information security in the information has promoted the biometric technology.As a new means of identification,finger vein authentication technology is known as the world＇s top biometric technology because of better confidentiality,more reliable,more practical and convenient.Based on the development of the finger vein recognition technology and the analysis of its certification principle,this paper makes a design of the entire acquisition system of finger vein authentication. Its aim is to solve the deficiencies of the traditional authentication on safety,convenience and maintainability.The entire system includes intravenous image acquisition module and system control module.The vein image acquisition module is used to take pictures of the outline of finger,the creases of finger and the vein patterns which are necessary in identify process.System control module is used for system control,to make a series of sequential actions like detecting the finger,taking photos automatically and uploading pictures to a PC.Through the design and implementation of this system,we can get the image of the finger vein patterns clearly and this will provide a reliable and effective original data for the computer＇s post processing.