Hi~Face recognition is a kind of biometric identification technology based on facial feature information. Using a camera or camera to collect images or video streams containing faces, and automatically detect and track faces in the image, and then carry out face recognition on the detected face of a series of related technologies, usually called portrait recognition, face recognition.
Face recognition system mainly consists of four parts, which are: face image acquisition and detection, face image pretreatment, face image feature extraction and matching and recognition.
Face recognition is mainly used for identity recognition. Due to the rapid popularization of video surveillance, many video surveillance applications urgently need a kind of fast identification technology under the condition of long distance and users' uncooperation, in order to quickly confirm the identity of people from long distance and realize intelligent early warning. Face recognition technology is undoubtedly the best choice. Using fast face detection technology, we can find the face from the surveillance video image in real time, and compare it with the face database in real time, so as to achieve fast identity recognition.
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