Along with the economic globalization, push forward the process of informatization,human began to put forward more security requirement in the survival of the social environment.For example, the security protection of material entity,personal identity, Personal credit information and social credit information.In these objects are in need of protection,personal identity is the most basic tools and techniques.Due to the biological characteristics that some personl physical features of being unchanged,different from person to person and easy to carry etc.As a result, biometric technology was gradually identified as human individuals to confirm the identity of the best technical solution.At present,the more common biometric technology on the international plane main include iris,physiognomy,fingerprints, palm prints, voice, DNA, and so on.c

Fingerprint Identification Technology

At present,the more common biometric technology on the international plane main include iris,physiognomy,fingerprints, palm prints, voice, DNA, and so on.

1.Iris
Iris is the people's eyes in the middle of black eyes and black eyeballs , ring the distribution of omentum.Everyone's characteristics of the iris is different,born to do it and the same for life.There are two common technology about irsi data acquisition equipment.One is a collection of laser technology, and the other is the collection of infrared technology.Use iris recognition technology, a relatively larger volume of equipment.The people is not know high degree of the iris recognition technology.(Worry about the laser or infrared is hurt the eyes.)In the process of actual installation,there are still restrictions on the location of the equipment installation, the cost is higher.In addition, analysis of the iris from the early collection of technical,iris is very difficult to collect the "living boby".For these reasons, there are still many obstacles to the objective in the use of iris recognition technology.

2、Face
The physiognomy is the human's facial feature,as well as the distributed profile.These distribution of characteristics is different from person to person and born to do it.Since the beginning of two-dimensional or three-dimensional surface imaging technology restrictions, it is difficult to do "live" collection or "real" acquisition.Such as the face features can be changed through plastic surgery,so the same characteristics of life-long to be research.As a result of the face biometric can be placed,the equipment is very good hiding place,can quickly identify the target object,and the cost is relatively low.Therefore face recognition technology is widely used abroad by the public security system,large-scale application.

3、Palma print
Palmprint recognition technology of the main shortcomings are the relatively low accuracy and bulky equipment.


4、Voice
The main characteristics of the voice channel from the pronunciation of the organs and the day after learning to decide.Therefore, voice recognition technology has been difficult to direct the definition of biological or non-recognition technology to identify biological characteristics.

5、DNA
DNA identification technology to identify the highest precision,relatively low efficiency of the identification,collecting samples is not convenient.Therefore, only individual applications for professional applications.。

Fingerprint recognition technology is one of the fastest growing biometric technology.With a mature technology, high integration, easy to use, maintain a simple, relatively low cost and so on.Modern e-integration manufacturing technology allows us to manufacture very small image of the fingerprint and reading device.At the same time, the rapid development of the personal computer provides in the microcomputer or even in single-chip can be carried out more than two fingerprints on the operation.In addition, the reliability of the matching algorithm has been improved so that the fingerprint recognition technology is widely applied to the identification of individuals in various fields, the application of an enormous scale.Now there are many domestic manufacturers to use fingerprints to identify success in attendance, gated, locked, and many other fields.

The fingerprint identification technology relates to four functions mainly: Fetch the fingerprint image , abstract a characteristic , preserve a data and compete with each other in a pair.

In the beginning, through the fingerprint reading device to read the fingerprints of the body image,taking into account the fingerprint image, the original image to a preliminary deal to make it clearer.
    Then, the fingerprint identification software builds the fingerprint digital presentation- - characteristic data, one kind of Shan direction changing, the fingerprint being able to change from the fingerprint becoming the characteristic data only can not become a fingerprint, but two different from characteristic data change can not produce the identical characteristic data.The software finds the data point the node "(minutiae) is called on secondary fingerprint , is just that those fingerprint grain ramification , coordinate location , these at the same time ending or striking the circle place have seven kinds the above uniqueness characteristics.This method may produce approximately 490 data as having 70 nodes averagely generally on the finger.
   Some algorithms have constituted the node and direction information having produced more data , these direction information has indicated the relation between each nodes , also some algorithms have handled the round number fingerprint image.In short, these data, often referred to as a template for the preservation of the records of the size of 1K.No matter how they are formed, which is still not a standard template, nor an abstract published by the algorithm,but all manufacturers go theirs own way.

1. The chip identification semiconductor:facilely distinguish the dust finger,crack finger,fuzzy fingers, oil pollution finger, rough fingers, the fingers of wet and dry, as well as anti-counterfeiting finger.
2. International advanced and reliable fingerprint algorithm(The S/FRA fingerprint technology is distinguished in USA international FVC technology megagame is first.)
3. Fingerprint capacity: 9000 piece
4. Recognition rate: <0.7s

Q: Dose gated management software of HB3K settings and the data back-up?
A: Enterprise users in the process of using the system,in order to avoid paralysis of the system led to the loss of user data,back up data in a timely manner.See statement to back up the steps.

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