Face recognition technology, is based on the identity of the person’s facial features information a biometric technology.With a camera or camera collection contains face images or video stream, and automatically detecting and tracking human face in the image, and then to detect face to face a series of related technologies, often also called portrait recognition, facial recognition.Traditional face recognition technology is mainly based on optical image of face recognition, it is also a familiar way of identification., is a simple process of computer recognize you.