该项目的主要目标是验证一个人在电脑前的身份。 系统已经存储了计算机的几个用户的签名，并且使用网络摄像头将与当前用户之前已经注册的用户匹配。 为了做到这一点，系统首先检测人脸，提取面部签名，然后在已知用户的数据库中进行匹配。-The main goal of the project is to verify the identity of a person in front of the computer. The system has stored several users　signatures for the computer and uses the webcam to match the user who has previously registered with the current user. In order to do this, the system first detects the face, extracts the face signature, and then matches it in the　of the known user.