Based on face recognition algorithms, it quickly and easily captures and processes the live image of an individual, verifying it against a database of enrolled persons. The result is immediately communicated to the access control system, and either grants entry, or raises an alert if the individual is not authorised. Feb 08, · Facial recognition software reads the geometry of your face. Key factors include the distance between your eyes and the distance from forehead to chin. The software identifies facial landmarks — one system identifies 68 of them — that are key to distinguishing your face. The result: your facial signature.