Here is just
a precise intro to Biometrics. Hope you have already got enough
knowledge about this topic.
- Biometrics is a technology used for analyzing the identity of
a person.
- Bios = life ; metrics = measurement.
- It refers to the identification of humans through their
distinctive physiological and behavioral attributes.
- Firstly, a reference model of the subject is taken and stored
in a template.
- Secondly, some fake samples are matched with the models and
the outcome is studied.
- Finally, at the time of authentication, the model is compared
with the appropriate person for verifying his identity.
2D and 3D technology:
- This technology is now being used in 2D in India and the 3D technology
is becoming popular overseas.
- 2D technology can be used with the cooperation of the subject
(in case of passport and other verification) and also without his cooperation (using
a cam for capturing and matching a person even in a crowd).
- The 3D technology can recognize the person even if the
expressions alone are different but a 2D cant.
- 3D technology requires the cooperation of the subject during
the processing of the reference model which a 2D doesn’t require.
- The cost and technology of 3D is higher and complex over 2D.
But as we know that the technology advances day by day, the
3D technology will become more simple easier to use. Thereby serving as a
security against the intruders.