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Time Clock Software Hand Systems

Ready or not, the use of biometrics is becoming more prevalent in commercial markets. Where biometrics was once found only in the domain of nuclear power plants, it is now use in other places where security is a concern, like police departments and day care centers. And, increasingly it is found in places where security is less important, like athletic clubs. In the near future, it is to be expected that biometric applications, now thoroughly time tested, will become even more widespread with utilization in such diverse fields as finance, ticket-less travel, new business and residential security.

Generally, biometric identification systems are based on the design of the human hand which has not significantly changed in a very long time; in fact some anthropologists argue that human intelligence is due in large part to the human hand. Now, thanks to the uniqueness of every humans hand, biometrics is being put to use to verify the identity of the hands owner.

Some hand scanners do this by taking nearly a hundred detailed measurements of the length, width, thickness, and surface area of the hand and four fingers - a task that is accomplished in a mere second. The scanner then uses digital technology to create a 3-dimensional shape from the images captured. The device is capable of ignoring features like lines, dirt, scars, and fingernail lengths. Even fingerprints are disregarded to create a template of the hand recorded during the enrollment session, which takes about 30 seconds. To enroll, the user places his or her hand in the reader three times. The units internal processor and software convert the image to a 9-byte mathematical template, comprised from the average of the three readings. The users template can be stored in the internal memory, along with 27,000 other user templates, or in other external media storage devices.

Some companies have advanced biometric technology for their hand scanners for practical, time saving applications. For instance, the U.S. Immigration and Naturalization Service (INS) has implemented biometrics technology to aid in its INPASS program, allowing over 60,000 repeat travelers to bypass immigration lines entirely. In 1996 at the Olympic Games, Olympic Villages hand geometry readers were integrated in the security system, allowing millions of transactions with little delay to the user.

With extensive development over time, the most modern hand scanners are able to achieve a very low False Reject Rate (the probability of an authorized user being rejected) while offering a high deterrent to unathorized users. Independent testing has documented False Reject rate/False Accept rates at less than 1%, and those tested rates were later confirmed by hundreds of thousands of transactions.

Tests also indicate that hand geometry has the highest user acceptance of all devices tested and gives a high level of security. Because of its ease of use and non-threatening technology, hand geometry is now the most widely accepted biometric technology in use today.




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