Door phones with face recognition

 

— the face recognition function is one of the varieties of biometric access systems. It is based on a digital camera, often supplemented by a built-in light to identify faces in the dark. Initially, such devices were not very accurate: they could be confused by changes in facial hair or makeup, the appearance or disappearance of glasses, and individual models could be deceived with the help of a photograph. With rare exceptions, facial recognition now uses advanced algorithms and high-end cameras with 3D scanners that read a three-dimensional model of the face. The device keeps the user library in its memory. The function is found in the flagship calling panels.