Soon, the eye will be the thing in security or the finger, the hand image, or the shape of the face. With the new biometric security technology, all an employee needs to access the workplace is an eye, finger or hand. These technologies are expected to become the norm for corporate security systems within the next few years. Initially developed in the mid-1970s, biometric devices have increased in capability and dropped in cost. The four most common biometric technologies, fingerprint scanners, hand geometry readers, face geometry scanners and retina or iris readers, are now becoming more affordable and technologically sophisticated. They can make entering a building easier than ever before for authorized workers and visitors.
How biometrics works
Employees create an initial biometric finger, hand or eye scan when they join a company that uses biometric devices. The technology records individual's unique characteristics and stores them as a pattern on a database, which is connected to a network by security software. Then, every time workers want to open a door, they scan their fingerprint, hand, face or eye and wait just seconds while the system checks the database for verification and authorization.
Fingerprint scanner
This is the most widely installed biometric system, popular with users because it's familiar and considered non-obtrusive. It examines an individual finger or thumb print.
Hand geometry readers
A reader with pegs guides the hand into position, and the whole hand and fingers are scanned in three dimensions.
Face geometry scanners
These devices scan the overall contours and proportions of the face and compare the reading to stored data.
Eye scanners
These highly accurate readers measure vascular shapes on the retina inside the eye, or look at patterns on the iris. These patterns are more complex than a fingerprint. Eye scanners are generally reserved for government and high-security facilities.
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