Definition of biometric: "Bio" means body and metrics means measurement. Hence biometric means body measurement or body identification by some means like face, fingerprint, ear, iris, retina, DNA, footprint, palm vein, palm print etc.
with the help of modern technology, we have been able to identify a person with almost 100% accuracy. Most common biometric means are biometric fingerprint verification, biometric face verification, biometric palm vein verification, biometric iris verification.
Biometric screening technologies have been acknowledged by all Government and other government agencies for human verification
You can find biometric standards of central government of India. - http://egovstandards.gov.in
There are several techniques that can be applied for verifying and confirming a user’s identity. They can be broadly classified as below:
- Something the user knows, such as a password or PIN
- Something the user has, such as a smart card or ATM card
- Something that’s part of the user, such as a fingerprint or iris. The strongest authentication involves a combination of all three
The technology used for identification of a user based on a physical characteristic, such as a fingerprint, iris, face, voice or handwriting is called Biometrics.
Advancements in technology has made possible to build rugged and reliable Biometric authentication systems, and the costs of biometrics authentication systems have been dropping as reliability is improving.
The key steps involved in a biometric authentication system are:
- Image capture – Using scanning devices available in the market
- Image recognition - Using standard algorithms
- Template creation - Using standard algorithms
- Matching – Using application and standard algorithms