广义的人脸识别实际包括构建人脸识别系统的一系列相关技术，包括人脸图像采集、人脸定位、人脸识别预处理、身份确认以及身份查找等；而狭义的人脸识别特指通过人脸进行身份-Construction of broad recognition, including face recognition system actually a series of related technologies, including facial image capture, face detection, face recognition preprocessing, identification and identity search, etc.　and especially by a narrow face recognition Face identity