Access Control System Based On Face Recognition

With the continuous development of artificial intelligence technology and modern communication technology,the access control system,as a very important link in the intelligence of buildings,has attracted more and more attention.At present,face recognition has become one of the most advanced technologies in identity authentication.It has high recognition rate and security,and its development cost is relatively low.It not only facilitates the management of the users and visitors,but also improves the security of the community and the level of building intellectualization.In the research of this paper,first of all,the development status of face recognition technology is introduced in detail,the development trend of access control system is understood to a certain extent,the shortcomings of various recognition modes are analyzed,and face recognition as the authentication method of access control system is determined.Secondly,the infrared imaging principle and various processes in the face recognition process,such as face acquisition,feature extraction,face recognition and other modules are studied in detail.Thirdly,the main methods and related concepts of face recognition are briefly introduced,the advantages and disadvantages of various face recognition algorithms are analyzed,and a face recognition algorithm based on Gabor wavelet combined with PCA is proposed.Finally,the overall design of the system is completed.This design USES ARM11 as the CPU of the system and is installed on the Linux operating system.It combines Qt and Open CV visual library,and skillfully combines the access control system and face recognition technology.Based on a large number of experiments,the security and recognition rate of face recognition based access control system are tested,and the results are analyzed.System test results show that under the condition of insufficient lighting,the face recognition access control system has high accuracy and strong in vivo detection function,which can resist most of the prosthesis attacks,and has a broad application prospect in intelligent buildings.