28-08-2017, 01:11 PM
The geometry of the hand is a biometric that identifies users by the shape of their hands. Manual geometry readers measure a user's hand across many dimensions and compare those measurements with measurements stored in a file.
Viable hand geometry devices have been manufactured since the early 1980's, making hand geometry the first biometric to find extensive computerized use. It's still popular; Common applications include access control and time and attendance operations.
Since hand geometry is not considered as unique as fingerprints, palm or iris veins, fingerprints, palm veins and iris recognition remain the preferred technology for high security applications . The geometry of the hand is very reliable when combined with other forms of identification, such as identification cards or personal identification numbers. In large populations, hand geometry is not adequate for so-called one-to-many applications, in which a user is identified from his biometrics without any other identification.
Viable hand geometry devices have been manufactured since the early 1980's, making hand geometry the first biometric to find extensive computerized use. It's still popular; Common applications include access control and time and attendance operations.
Since hand geometry is not considered as unique as fingerprints, palm or iris veins, fingerprints, palm veins and iris recognition remain the preferred technology for high security applications . The geometry of the hand is very reliable when combined with other forms of identification, such as identification cards or personal identification numbers. In large populations, hand geometry is not adequate for so-called one-to-many applications, in which a user is identified from his biometrics without any other identification.