As our world becomes increasingly modernized so does our desire for more sophisticated means to identify people as they are. Biometrics is simply the science that involves human recognition in general. The rapid shift in new technology has had many companies come up with ways to distinguish people either for security purpose or other reasons (Adini, 2007). Some of these new forms of recognition include iris recognition, retinal scanning, hand geometry facial recognition, signature recognitions well as finger imaging. Such forms of technology that distinguish people may be divided into two categories, the personal trait, and the physical trait.
The physical trait is embedded and specific to an individual; it is as unique as someone’s DNA code, whereas the personal trait is more of a style that is unique to each person (Daugman, 1993). The only challenge to this recognition is that it may change gradually as an individual grows and develops over time.
Retinal scans fall into the group of scans that look for physical traits. It is conducted when a laser beam is bounced off the cornea which in turn absorbs certain frequencies of light that are specific to an individual’s cornea (King, 2015). The light that doesn’t get absorbed returns to the machine and is then read to determine who the individual is. The machine has great to recognize the unabsorbed frequency just the same as the cornea. Other forms of retinal scans have been developed in a way that they map the unique patterns of an individual’s retina. The moment the scanning device captures the image of the retina; high-tech software records the unique features of the network of the blood vessels in the retina (Daugman, 1993). Such scans require a very high-quality imaging and will not let the individual being scanned to use the system until it is able to capture an image of great quality. It is a highly dependable form of technology since it...