Enter the new world era of iris technology application

In all biometric technologies including fingerprints, iris recognition is the most convenient and accurate one for current applications. Iris recognition technology is widely considered as the most promising biometric authentication technology in the 21st century. Future applications in various fields such as security, national defense, and e-commerce will inevitably focus on iris recognition technology. This trend has gradually begun to appear in various applications around the world, and the market has a very broad application prospect.

Iris technology concept The appearance of the human eye consists of three parts: the sclera, the iris, and the pupil. The sclera, which is the white part of the eyeball, accounts for about 30% of the total area; the center of the eye is the pupil, which accounts for about 5%; the iris is located between the sclera and the pupil and contains the most abundant texture information, occupying 65%. From the appearance, it is composed of many glands, folds, pigment spots, etc. It is one of the most unique structures in the human body. The formation of the iris is determined by genetics, and the human gene expression determines the morphology, physiology, color and overall appearance of the iris. After about eight months of development, the iris has basically developed to a sufficient size and entered a relatively stable period. Unless unusual abnormalities, physical or mental trauma, may cause changes in the appearance of the iris, the morphology of the iris can remain unchanged for decades. On the other hand, the iris is visible to the outside but at the same time belongs to the internal tissue behind the cornea. To change the appearance of the iris, very delicate surgery is required and the risk of visual impairment is risked. The uniqueness, stability, and unchangeable characteristics of the iris make the iris the material basis for identification.

The human eye consists of a sclera, an iris, and a pupil. The iris is an annular portion between the pupil of the eye and the white sclera, which accounts for about 65% of the total area. It is composed of quite complex fibrous tissue and contains many mutual Staggered details such as spots, filaments, coronal, stripes, crypts, etc. These features are determined in a random combination, once formed for life.

Iris recognition technology is a high-tech technology that utilizes the characteristics of human iris lifelong invariability and individual differences to identify the identity. It uses optical means, non-contact acquisition of iris images, and iris images acquired by computer image processing technology. For identification and storage, the rate of misunderstanding is 1.2 million. At present, no cases of iris feature duplication have been found in the world. Iris recognition technology combined with the corresponding algorithm can reach very good accuracy, even if all human iris information is entered into a database, the possibility of false recognition and rejection is also very small.

The application of iris technology Now the application of iris recognition in China has started. Last year's sales are estimated to be around RMB 10 million, and the development momentum is strong. It can be expected that the industrialization of iris recognition in China will usher in a bright spring. The main application areas of domestic iris recognition are:

(1) Access Control and Attendance This is also the largest application direction of other domestic biometric authentication products. The current domestic sales of foreign iris recognition products are also mainly installed on high-end real estate projects for access control.

(2) Finance and securities The bank safe/cabinet based on iris recognition, jointly developed by the Institute of Automation of the Chinese Academy of Sciences, Model Science and Technology Corporation and Ningbo Bayi Group, has been put into the market. The first Taiwan-based iris recognition ATM was also successfully developed last year and participated in China. International Finance (Bank) Technology and Equipment Exhibition.

(3) E-Passports and Second-Generation Identity Cards The ICAO-published plan in 2003 will require the addition of biometrics (face recognition, iris recognition, fingerprint recognition) to individual passports and personal identification when entering borders of various countries. confirm. Sooner or later, China will join this plan. For the sake of national security, the domestic iris recognition system will have a greater competitive advantage. The second-generation ID card in China also leaves room for the implementation of biometric authentication technology.

(4) The issuance of medical insurance and endowment insurance The social security undertaking in China is booming. Because the iris feature can remain unchanged for a lifetime, the iris recognition technology can be used to confirm the identity of the insured personnel and prevent false appearances.

(5) Public security and judicial applications such as fugitive tracking and judicial criminal investigation.

(6) Electronic commerce China has already issued the electronic signature method. If iris recognition is introduced in the digital signature scheme, it will increase the security of online transactions.

(7) Information security such as file encryption, cryptography and iris recognition.

(8) Iris recognition must be used for workers in special industries such as the mining industry that are affected by the return of biometrics on the face and hands.

People should also clearly realize that compared with foreign excellent iris recognition products, domestic systems still have a large gap, especially in the aspect of iris image acquisition hardware devices. The main problem in the actual application of the iris recognition system is that obtaining a high-quality iris image requires the user's good cooperation, and the hardware cost is also relatively high. Therefore, the development trend of iris recognition in the future is to improve the friendliness of the human-machine interface of the system and reduce the cost of the acquisition equipment. From the hardware aspect, it is possible to design an optical lens group with a large depth of field, and introduce automatic zooming technology and assisted positioning technology to improve the ease of use of the system; from the software side, super-resolution technology and image enhancement technology can be used to improve image quality. Voice prompts or video remind users to collaborate with the acquisition device. In the application environment where the security level is high, the live detection of the iris image is also an important aspect to prevent the counterfeiter from stealing other people's iris images. In order to standardize the data format of iris images, the data interface between hardware providers, software developers, and system integrators is unified, data sharing between various computer applications is promoted, and communication between researchers is facilitated to support the identification of iris products. Evaluations should be made as soon as possible to invest in the standardization of iris recognition.

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