Recognition – Biometrics

As they work the recognition by voice?

The sound, pattern and rite of the voice are moderate and a numerical score is assigned to them that later is verified with similar scores.

Where is used the scanner of voice recognition?

The voice can be used to allow to the employees the access to safe areas, but one more a more popular application is the remote authentication by telephone, specially for banks and other financial companies to avoid the identity robbery.

What level of security offers the recognition by voice?

It is improving, but still he is not as safe as other biométricos systems.
The voice verification is very sensible to the atmospheric noise and can vary by the physical training conditionses of the user (for example, if it is constipated), as well as by the used equipment (in the telephone identification, it depends on the terminal).
For that reason the voice is used other systems along with, like the rainbow or face scanner.

As the DNA recognition works?

The DNA of a person it is obtained through saliva, blood samples, hair or skin. The length and protein the sequence of several sections of the DNA chain are analyzed to generate a “DNA profile” that is compared with other profiles to see if they agree.

Where is used the recognition by DNA?

At the moment the DNA analysis is used almost solely to verify the paternity and by the forces of the order.
Almost all the North American states gather samples of DNA of the condemned by violent crimes, and four states also take them to all the arrested ones, according to DNA Resource.
The data base of AND of FBI has data of more than 2.1 million DNA samples.

What level of security offers the recognition by DNA?

The possibility that two people have the same DNA sequence considers in 6.000 million against one, unless they are twin identical.
However, the identical binoculars have different rainbows and retinas, reason why in this case a scanner of eyes would be more trustworthy.