Biometric authentication technology

With the popularization of informatization network, the protection of identity information security has become a social problem that everyone will face, and the bio-authentication technology provides a new type of method for the solution of this problem which is different from the traditional identity authentication.

Traditional identity authentication identifies the user’s identity through specific signs or protocols, such as keys, ID numbers, login passwords, etc., and their drawbacks are that they are easy to be obtained by others and easy to be lost. Traditional authentication methods identify the user’s identity by virtue of items, knowledge, etc. owned by the user, which means that as long as the user’s belongings that can be authenticated are acquired, the user can successfully disguise his identity and exercise the same power as the identity thief.

Bio-authentication technology, on the other hand, utilizes human biometric features, such as facial image, fingerprints, iris, voiceprints, handwriting, DNA, etc., which are inherent to the human body and difficult to replicate, and therefore have very prominent advantages over traditional authentication methods.

Face Recognition

Facial recognition is a technology for identification based on a person’s facial features, which analyzes the relative positions of the eyes, nose, and mouth on a person’s face. Static facial recognition and thermal facial recognition are the two mainstream facial recognition technologies.

Static facial recognition analyzes face images captured by ordinary optical cameras, while thermal facial recognition analyzes face images formed by hot filaments generated by blood in facial capillaries, where thermal facial recognition can be used in dark situations.

Fingerprint recognition

Fingerprints are the bumpy lines on the skin on the front side of the end of the finger, and there is a great deal of information hidden in this small piece of skin. Fingerprint identification technology has a long history, as early as ancient times, people realized the uniqueness of fingerprints and made use of this characteristic, such as after interrogation of prisoners to have their fingerprints printed on the back of their testimonies.

This technology has evolved to become a mature and highly reliable identification technology, and compared to other technologies, it is arguably the most cost-effective biometric authentication technology.

Fingerprint identification is now widely used in cell phone payment, access control, time and attendance, anti-theft and other fields.

Iris recognition

Iris recognition is a technology that authenticates an individual’s identity based on the diversity and invariance of the individual’s iris. The iris, the circular portion of the iris located between the black pupil and the white sclera, has a very rich textural structure and contains many interlaced spots, filaments, coronas, stripes, crypt fossae, and other detailed features that make each iris unique.

Compared to face recognition and fingerprint recognition, iris recognition has the highest accuracy, and even if the irises of both eyes of all human beings were recorded, there would be almost no possibility of sample duplication or extreme similarity.

Your task

What do you think are some of the great experiences or implications of biometrics in your life?

Share your thoughts and ideas in the comments below.