说明：  本文研究了数字视频监视系统中自动实现人脸检测和识别的技术。由于在身份鉴别、人机交互、图像检索和视觉监控等领域有着巨大的应用前景,人脸识别技术成为计算机视觉、模式识别等研究领域中一个很受关注的研究热点
(In this paper, the digital video surveillance system automatically face detection and recognition technology. As identification, human-computer interaction, image retrieval and visual monitoring of such areas has great application prospect, face recognition technology as computer vision, pattern recognition and other areas of research in a popular research focus of concern)