This technology can identify, measure and analyze human behavior and physical aspects of the body’s structure and form.

It allows for more natural interactions between humans and machines, including interactions related to touch, image, speech and body language recognition, and is big within the market research field.

3VR, Affectiva, Agnitio, FaceFirst, Sensory, Synqera and Tahzoo are all biometrics companies working hard to develop this area.

Biometrics is the technical term for body measurements and calculations. It refers to metrics related to human characteristics. Biometricsauthentication (or realistic authentication) is used in computer science as a form of identification and access control.

Biometric authentication is the process of comparing data for the person's characteristics to that person's biometric "template" in order to determine resemblance. The reference model is first store in a database or a secure portable element like a smart card. The data stored is then compared to the person's biometric data to be authenticated. Here it is the person's identity which is being verified. 

Biometric identification consists of determining the identity of a person. The aim is to capture an item of biometric data from this person. It can be a photo of their face, a record of their voice, or an image of their fingerprint. This data is then compared to the biometric data of several other persons kept in a database. 

Biometrics: trends

​Faced with document fraud and identity theft, with new threats such as terrorism or cybercrime, and faced with the understandable changes in international regulations, new technological solutions are gradually being implemented. One of these technologies, biometrics, has quickly established itself as the most pertinent means of identifying and authenticating individuals in a reliable and fast way, through the use of unique biological characteristics. 

Today, many applications make use of this technology. 

That which in the past was reserved for sensitive applications such as the security of military sites is now developing rapidly through applications in the public domain.

Physiological measurements 

They can be either morphological or biological. These mainly consist of fingerprints, the shape of the hand, of the finger, vein pattern, the eye (iris and retina), and the shape of the face, for morphological analyses.

For biological analyses, DNA, blood, saliva or urine may be used by medical teams and police forensics.

​Behavioral measurements

The most common are voice recognition, signature dynamics (speed of movement of pen, accelerations, pressure exerted, inclination), keystroke dynamics, the way objects are used, gait, the sound of steps, gestures, etc. 

The different techniques used are the subject of ongoing research and development, and, of course, are being constantly improved. 

However, the different sorts of measurements do not all have the same level of reliability. Physiological measurements are usually considered to offer the benefit of remaining more stable throughout the life of an individual. For example, they are not as subject to the effects of stress, in contrast to identification by behavioral measurement. 

When was biometrics first invented?

Biometrics addresses a longstanding concern to be able to prove one's identity, irrefutably, by making use of what makes one different.

Going as far back as prehistoric times, man already had a feeling that certain characteristics such as the trace of his finger were sufficient to identify him, and he "signed" with his finger.

Identity and biometrics

There are three possible ways of proving one's identity: 

by means of something that you possess. Until now, this was something that was relatively easy to do, whether it was by using the key to one's vehicle, a document, a card, or a badge.

by means of something that you know, a name, a secret or a password.

by means of what you are, your fingerprint, your hand, your face.

The use of biometrics has a number of benefits. 

The leading one is the level of security and accuracy* that it guarantees. In contrast to passwords, badges, or documents, biometric data cannot be forgotten, exchanged, or stolen, and cannot be forged. 

Where is biometrics used?

These applications are predominantly introduced by national authorities, as the biometric enrollment and management of a population's biomeric data call for a tightly regulated legal and technical framework. 

Law enforcement and biometrics

Law enforcement biometrics are refering to applications of biometric systems which support law enforcement agencies. This ​category can include criminal ID solutions such  as Automated Fingerprint (and palm print) Identification Systems (AFIS). They process, store, search and retrieve, fingerprint images and subject records.​ 

Today Automated Biometric Identification Systems (ABIS) can create and store biometric information that matches biometric templates for face, finger, and iris.

Discover the work of ​​forensic analysts​ in our video.

Live face recognition - the ability to do face identification in a crowd in real-time or post-event - is also gaining interest for homeland security – in cities, airports and at borders.  

 ​Biometrics and border control

The application which has been most widely deployed to date is the electronic passport (epassport), particularly with the second generation of such documents also known as biometric passports, on which two fingerprints are stored in addition to a passport photo. 

Biometrics provides irrefutable evidence of the link between the document and its holder. 

Biometric authentication is done by comparing the fingerprint(s) read with the fingerprints in the passport micro-controller. If both biometric data match, authentication is confirmed. ​​​​

​Identification, if necessary, is done with the biographic data in the chip and printed.

Another advantage of this solution is that it speeds up border crossing through the use of scanners, which use the principle of recognition by comparison of the face and/or fingerprints. 

In addition, many countries have set up biometric infrastructures to control migration flows to and from their territories. 

Fingerprint scanners and cameras at border posts capture information that help identify travelers entering the country in a more precise and reliable way. In some countries, the same applies in consulates to visa applications and renewals.