Mode Area (Pattern Area) mode Area is refers to the biometric fingerprint time clock include general characteristics of the Area, that is, from mode Area can distinguish fingerprint is belong to that kind of. Some fingerprint recognition algorithm using only the data model. Aetex fingerprint recognition algorithm using the has complete fingerprint and is not only a mode area analysis and recognition. It (Core Point) it is located in fingerprint texture progressive center, it used to read fingerprints and comparison of fingerprint of reference Point.


At present, from a practical point of view, fingerprint time clock technology is superior to others biological recognition technology identification method. This is because the fingerprint each are not identical, lifelong fundamental characteristics have been recognized. The earliest fingerprint recognition system application and the police criminal suspects detection, there have been more than 30 years of history, the fingerprint identification of research and practice have laid a good technical basis. Especially now fingerprint identification system has reached the operation is convenient, accurate and reliable, price moderate stage, is gradually applied in civil market.

fingerprint time clock refers to the number of the fingerprint model lines. In the calculation of the fingerprint grain number, the general first in connection it and triangulation point, this article connect with fingerprint lines intersecting quantity can be considered fingerprint grain number. Local features local features is refers to the fingerprint of nodes on the. Two fingerprint often have the same general characteristics, but their local characteristics - node, but could not completely the same node (Minutia Points) biometric time clock is not continuous, smooth straight, but often interrupt, bifurcate or discount. The breakpoint, bifurcation point and turning point is called "node". It is these node provides fingerprint uniqueness confirmation.



A, biometric time clock background knowledge Our palms and fingers, feet, toes medial surface skin rough and uneven produce lines will form all kinds of design. The existence of these grain increased at the surface of the skin friction, so that we can use hand to grab the weight. People also pay attention to, including fingerprint, the skin texture in the pattern, breakpoint and crossing each are not identical, that is to say, is the only. Rely on this uniqueness, we can put a man with his fingerprint corresponding up, through to his fingerprints and preserved fingerprint comparison, it can be used to verify his true identity. This depend on human body characteristic to carry out identity verification technology, called biological recognition technology, fingerprint recognition is a kind of biological recognition technology.

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