Biometrics

[Hina Muqadas]

Biometrics refers to technologies used to detect and recognize human physical characteristics. In the IT world, biometrics is often synonymous with biometric authentication, a type of security authorization based on biometric input.
There are several types of biometric authentication. Common examples include fingerprint scanning, retinal scanning, facial recognition, and voice analysis. A facial recognition system, for instance, uses a camera to capture an image of a persons face. The photograph is then recorded and processed using biometrics software. The software attempts to match the scanned image with an image from a database of users photos. If the scan is close enough to a specific user, the person will receive authorization to continue.
In many cases, a biometric scan is similar to a login. For example, some computers have a finger scanner that allows you to authenticate yourself by swiping your finger across a sensor. Instead of entering a username and password, the finger scan provides your authorization. Some retail outlets now use finger scanners to verify peoples identity as an alternative to entering a unique pin number. High-security government and office buildings may even require retinal scans in order to access certain areas of the building. In some cases, a keycard, passcode, or login is required in addition to a biometric scan in order to provide extra security.

[Magaret]

The term biometrics relates to metrics related to human characteristics.
Specifically for mobile phones the common biometrics utilized for security are fingerprints, Iris (eye) recognition and full facial recognition.
Additionally, heart rate and SpO2 (the estimate of arterial oxygen saturation) information can be collected to support health related applications.

[Ernesto]

the use of detailed information about someones body, for example the patterns of colour in their eyes, in order to prove who they are: