Fingerprint refers to the uneven lines on the front skin at the end of the finger. The existence of these lines increases the friction on the skin surface and enables us to grasp heavy objects with our hands. Although fingerprints are only a small part of human skin, they contain a lot of information. These skin lines are different in patterns, breakpoints and intersections, and they are called "features" in information processing. Through the automatic fingerprint identification system, these characteristics of each finger are particularly different. According to the uniqueness of features, we can associate a person with his fingerprints. By comparing his fingerprint features with pre-stored fingerprint features, we can verify his true identity. Photoelectric conversion equipment and computer image processing technology can collect, analyze and compare living fingerprints, and can automatically, quickly and accurately identify personal identity. Generally speaking, the system mainly includes fingerprint image acquisition, fingerprint image processing, feature extraction, feature value comparison and matching. Modern electronic integrated manufacturing technology makes fingerprint image reading and processing equipment miniaturized. At the same time, the rapid development of personal computer operation speed makes it possible to carry out fingerprint comparison operation on microcomputer or even single chip microcomputer, and excellent fingerprint processing and comparison algorithm ensures the accuracy of identification results.
In computer system, fingerprint identification can be used to confirm the identity of boot login; Access rights and identity confirmation of remote network database; The encryption methods of anti-fraud and universal deposit and withdrawal of bank savings: identity authentication of internal personnel login and remote authorization in the financial industry; Identify candidates in the examination system; The identity certificate of the insured in the insurance industry; The identity certificate of the drawer of futures securities; The identification of medical insurance companies in the medical and health system and so on.
Fingerprint locks can be used for access control management and intelligent operation control, such as access control of government agencies, confidential departments, bank vaults, entrances of hotels, office buildings and apartments, start-up control of automobiles, and safety protection of important weapons and equipment.
If the fingerprint information is recorded on a special card, fraud such as impersonation can be prevented through on-site comparison. For example: credit card, medical card, conference card, savings card, driver's license, admission ticket, passport anti-counterfeiting and so on.
Computer fingerprint automatic identification technology is coming into our real life from science fiction and Hollywood movies. Maybe one day, you don't have to carry that bunch of keys with you. Just press your finger and the door will open. You don't have to remember that annoying password, you can withdraw money and log in to the computer with your fingerprints. I believe this day will not be too far away.