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There are four types of fingerprint scanners: [7] optical scanners, capacitance scanners, ultrasonic scanners, and thermal scanners. The basic function of every type of scanner is to obtain an image of a person's fingerprint and find a match for it in its database. The measure of the fingerprint image quality is in dots per inch (DPI). [8]
Fingerprint sensors can be found on mobile devices. The fingerprint sensor is used to unlock the device and authorize actions, like money and file transfers, for example. It can be used to prevent a device from being used by an unauthorized person. It is also used in attendance in number of colleges and universities.
A non-tented fingerprint arch A fingerprint loop A fingerprint whorl A tented fingerprint arch Before computerization, manual filing systems were used in large fingerprint repositories . [ 27 ] A fingerprint classification system groups fingerprints according to their characteristics and therefore helps in the matching of a fingerprint against ...
Roose also noted that fingerprint technology still has some issues, such as the potential to be hacked, or of the device's not recognizing the fingerprint (for example, when the finger has been injured). [22] Adrian Kingsley-Hughes, writing for ZDNet, said Touch ID could be useful in bring your own device situations. He said the biometric ...
Biometrics are body measurements and calculations related to human characteristics and features. Biometric authentication (or realistic authentication) is used in computer science as a form of identification and access control.
A barcode reader or barcode scanner is an optical scanner that can read printed barcodes and send the data they contain to computer. [1] Like a flatbed scanner , it consists of a light source, a lens, and a light sensor for translating optical impulses into electrical signals.
The fourth product is the most advanced of the group, and while it is not touchless, there is no contact with the scanner, just with an "optical scanning area." A list of nine "contactless fingerprint technologies that are worth noting" is part of the report. Of the top three, the first closed in 2011.
The first smartphone with a fingerprint reader was the Motorola Atrix 4G in 2011. [160] In September 2013, the iPhone 5S was unveiled as the first smartphone on a major U.S. carrier since the Atrix to feature this technology. [161] Once again, the iPhone popularized this concept.