Research And Implementation Of Embedded Iris Recognition Technology

With the development of science and network information,the information security issues of the country and individuals have become the subject of much concern.Biometric identification technology has the characteristics of high stability and high security,so they have replaced various authentication methods in the past.Iris recognition technology,as the most accurate identification method in biometric identification technology,makes it have very good research value.And development potential.This article has designed the iris-based authentication system based on the embedded system and adopted the Raspberry Pi 3rd generation B-type development board.Compared with many iris recognition products based on the PC platform,it is not only full-featured,but also has a small size,high mobility,and low cost.The main work of this article includes:Firstly,this paper introduces the topic selection background and development status at home and abroad,puts forward the design concept of this paper,combines the advantages of iris recognition technology and embedded system,and designs an iris-based identity authentication system based on embedded.Afterwards,the overall scheme based on the embedded iris authentication system was introduced,including the overall flow of the iris recognition system.The Raspberry Pi 3rd generation B-type development board was selected for the hardware and the functions of the key modules were introduced.Software introduced the installation of the system,the establishment of the compiler environment and the installation of the relevant algorithm library.Then the image processing part of the iris recognition system is introduced,which mainly includes iris image preprocessing,iris boundary location and iris image normalization.After that,the method of extracting and matching the iris features by the embedded platform is introduced.The specific algorithm is given for the noise of the iris image and the rotation and translation problems of the iris image during the collection process.The message authentication code is added in the authentication phase to implement two-factor authentication and improve the security of authentication.Finally,the system designed and tested in this paper is tested and analyzed.The performance of the system was analyzed by experimental data and results.After testing the system,the iris-based identity authentication system designed in this paper has reached various performance requirements of the previous design requirements,with good stability,security,portability,low power consumption,low cost and other advantages.Can have some reference value for practical application.