Biometric Identification for Accurate Results

Biometric identification is the term given to the detection of a person's identity on the basis of the physical characteristics of the person which differs from individual to individual. With increased differences that are detected the process becomes more complex in identifying the right one. The biometric identification process in common use consists of different versions among which the one that involves fingerprint and retinal scan is the system which is in high demand. This is employed when the security concerns are very high but this system has certain drawbacks like inability of the person involved to be scanned precisely or the details needed may not be present in the individual.

The physical characteristics needed for identification purpose are of numerous types. According to the specific characteristic that is chosen for identification, the security system in the biometric identification has to be designed. For instance, a fingerprint is used to verify either a person's identity or the geometry of the hand and not for both. Besides finger and hand, face, eyes or even voice can be used as the main characteristic for identifying.

Fingerprint scan is by far the most precise biometric identification system in use. Fingerprints are formed as early as the fetal stage itself and are fully formed by the fourth month of the fetus. The fingerprints differ from person to person and even identical twins do not have similar fingerprint pattern. The pattern grows with the growth of the individual and there is no change in the identifying ridges, they remain unaltered.

Hand geometry is another type of biometric identification that is very popular. The entire hand is taken into account here. It is not as accurate as the fingerprint scan due to the inconsistencies seen in the details of the hand. Palm vein authentication is another system of detection which uses the hand. An infrared light is passed over the hand. The rays form an image of the veins in the hand. This is very accurate and it cannot be duplicated as the veins are internal and moreover it is very hygienic as no contact is needed for taking the scan.

The retinal scan and the iris scan are two types of scan that use the eye for identification purpose. The retinal scan involves the capillaries that are present posterior to the orbital socket. It uses a low power light beam and is very safe as the retinal pattern undergoes very little changes during growth. The iris scan is another accurate procedure that takes into account the furrows, freckles and rings in the iris and also the color.

Whatever be the type used in the biometric identification the methods are very safe and precise. The precision increases with the complexity of the characteristic involved. The security measures and procedures employed in biometrics are very useful in making an accurate identification with virtually no room for error.