中文说明：人脸识别，是基于人的脸部特征信息进行身份识别的一种生物识别技术。用摄像机或摄像头采集含有人脸的图像或视频流，并自动在图像中检测和跟踪人脸，进而对检测到的人脸进行脸部的一系列相关技术，通常也叫做人像识别、面部识别。首先可以检测到的人脸输入到数据库中作为样本进行训练，紧接着就可以根据当前的采集到的人脸与数据库中进行比对，找出最匹配的人脸。
English Description：
Face recognition is a kind of biological recognition technology based on human face feature information. Using camera or camera to capture the image or video stream containing the face, and automatically detect and track the face in the image, and then carry out a series of related technologies of face detection, which are usually called portrait recognition and face recognition. Firstly, the detected faces can be input into the database as samples for training, and then the most matched faces can be found by comparing the collected faces with the database.