1. First create a facial image of the face. That is, the camera collects the face image files of the face of the unit personnel or takes their photos to form a face image file, and stores these face image files to generate a faceprint code.
2. Get the current body image. That is, the face image of the current entry and exit person captured by the camera, or taking a photo input, and generating the face image of the current face image file.
3. Compare the current face code with the file inventory. The face code of the current face image is searched and compared with the face code code in the file inventory. The face coding method works according to the essential features of the face and the beginning of the face. This face code is resistant to changes in light, skin tones, facial hair, hair, glasses, expressions and postures, and has a strong reliability that allows it to accurately identify a person from a million people.
4. The face recognition process can be completed automatically, continuously, and in real time using ordinary image processing equipment. The technical process face recognition system mainly includes four components: face image acquisition and detection, face image preprocessing, face image feature extraction, and matching and recognition.