人脸识别特指利用分析比较人脸视觉特征信息进行身份鉴别的计算机技术。人脸识别是一项热门的计算机技术研究领域，它属于生物特征识别技术，是对生物体（一般特指人）本身的生物特征来区分生物体个体。一般来说，人脸识别系统包括图像摄取、人脸定位、图像预处理、以及人脸识别（身份确认或者身份查找）。系统输入一般是一张或者一系列含有未确定身份的人脸图像，以及人脸数据库中的若干已知身份的 人脸识别人脸图象或者相应的编码，而其输出则是一系列相似度得分，表明待识别的人脸的身份。-Face Recognition refers specifically to take advantage of the analysis and comparison of face visual feature information for the identification of computer technology. Face recognition is a popular research field of computer technology, it belongs to biometric identification technology, is to distinguish between organisms of individual organisms (usually unspecified) itself biometric. In general, the face recognition system includes an image pickup face positioning, image pre-processing, as well as face recognition (identification or identity lookup). System input is generally one or a series of face image containing undetermined identity, as well as a number of known identity in the face database of face recognition face image encoding, and its output is a series of similarity score, indicate that the identity of the human face to be identified.