Fingerprint scanning is the oldest of the biometric scanning technology, which uses the characteristics of a
human fingerprint to determine or verify the identity of the various parties. Models furrows and ridges of fingerprints are unique to each person. For more than a century, fingerprints were dusted for the detection of crime more than for safety purposes. Today, with the advent of biometric technologies, fingerprint imaging or scanning gave various corporations, institutions and organizations, a safe and accurate means to retrieve relevant information from simple fingerprints.
Fingerprint scanning technology is one of the most commonly and widely used security applications of biometric technologies. Using the unique characteristics and patterns of the human fingerprint, it performs the mapping of identity and authorization checking application. Although this technology has been widely adapted, more sophisticated scanners are designed to perform more accurate and specific applications fingerprint processing. But although there have been improvements made to the process of fingerprint identification, basic authentication is much the same.
Regardless of manufacturer or brand fingerprint scanner works basically the same. Standards systems make use of sensors, where the user can have his fingerprints scanned. The machine then applies to its pre-defined database that stores the number of links, images, accounts, PIN-number or authorization code that corresponds to the identity and authority of the person taking the processing of fingerprints. Although most of fingerprint scanners are designed to allow or deny access to classified information or controlled room or object, it can also be used for simple applications like employee time clock and payroll access.
There are several steps involved in scan testing and identification of fingerprints. The first step involves getting fingerprints. The next stage of processing the print image. Here the distinctive patterns, grooves and ridges are considered to match the print to the fingerprint templates and files stored in the database. In this step, the print image enlargement or converted into a more convenient format that can be interpreted scanner.
The next step will be the location of the various characteristics in the image of the fingerprint. Since the fingerprint templates furrows and ridges are unique to each person, the scanner will look for those of the individual cycles, swirls and arches. In general scanners look for 15 to 20 fingerprint image reference points for more accurate identification comparison. With the use of very complicated algorithms processed sample fingerprint is compared with the number of enrolled fingerprint templates in the database as long as it is an absolute exact match to the identification of the fingerprint.
Although fingerprint scanning technology is extremely useful and practical, it can run into some problems. For example, there is the question of its reliability and accuracy due to wear of the machine. There is also the problem of the quality of the fingerprint images obtained by the scanning machine. During cold weather the oil in the finger, which helps the product better fingerprint patterns tend to dry. In addition to large-scale applications, there is a concern that some of the people concerned may not be able to register their fingerprint templates. Workers tend to change their fingerprint characteristics as they actively work with their hands. It is only disadvantages for fingerprint scanning, but most of them can be alleviated.
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