The system measures the facial hole and generates a facial pattern, which is a unique numerical code for the face. After storing the facial pattern, the system will compare it with thousands or millions of facial pattern data stored in the database. Each facial pattern is stored as an 84 byte file. The system can match facial pattern data in memory at a speed of 60 million faces per minute, and for facial pattern data in the hard drive, it can match 15 million faces per minute. Operators can view two photos declared as matches to determine if the computer's operation is accurate.

Your face is an important element that identifies you, and others will also recognize you through your face. Imagine how difficult it would be to recognize a person if all faces were the same. Apart from twins who look almost identical, a face is undoubtedly the most unique physical feature of a person. Not only do humans have the innate ability to recognize and distinguish millions of different faces, but computers are also catching up with this ability.