Design of face recognition access control system based on ARM

In view of problems that existing access control system with IC card or RF card can only recognize card but cannot recognize people, and the system with finger prints iris recognition technology that fingerprint is easy to be damaged, the paper designed a face recognition access control system based on ARM. The system takes S3C2440B as processor, USB camera as device of capturing video, which can search face and take photo automatically. The system adopts face recognition algorithm based on PCA to recognize the image. If the face is not in library, the system will alarm and send message to notice administrator by GPRS. The test result proves the system can recognize face accurately and efficiently under the strict test environment，and the average recognition rate is above 95%.