The principle, advantages and supply chain of iris recognition are all here.

In response to the rising demand for mobile payment, Samsung's latest flagship smartphone Note7 has identified iris recognition as a standard device, and is expected to lead other brands to launch hardware arms race into related specifications. What is iris recognition technology? What is the current development situation? The related technology principles, development potential and layout of iris recognition are summarized below. The iris recognition system consists of three main modules: iris image acquisition, iris detection, feature extraction and matching. Iris image acquisition is the first step in iris recognition. The iris area is small, and the iris color of different races is very different. These make it impossible for ordinary cameras to capture clear iris images that can be used to identify. Therefore, special iris image acquisition devices must be adopted, including infrared optical imaging system, electronic control unit and appropriate software algorithm (such as image restoration and enhancement, focusing judgment algorithm). Feature extraction and matching is the core part of iris recognition system, that is, using effective features to describe iris images and characterizations of similarity between feature vectors. Finally, the system compares the collected information with the information in the database, determines the user's identity and authority. Note7 iris recognition constitutes Note7. Iris recognition consists of two parts: an infrared LED launch device and an infrared camera specially designed for iris scanning. Both of them cooperate to complete the scanning and recognition process. Therefore, besides the traditional front camera, there are two holes in the front of Note7, which are infrared LED and infrared camera. According to South Korean media reports, the Samsung Note7 released the main algorithm of iris recognition from Samsung's own R & D, infrared camera module from Korean manufacturers Patron, infrared LED provided by OSRAM. Iris recognition system process iris recognition system process, for example: Note7's iris recognition work is mainly through infrared scanning to achieve the iris unlock, when in practice, the use of a light-emitting diode (Hong Waiguang) and optical receiver sensor work, in the iris detection, first of all, Open infrared LED, infrared LED emit infrared light, hit the human eye and then reflect back, the infrared camera Camera capture pictures, for the back-end algorithm to identify. Iris recognition principle iris recognition principle, for example, the iris recognition system of Samsung Note7 contains a specific infrared LED light source, so that infrared auxiliary scanning can be launched to ensure the normal use of iris recognition in the evening. Some people worry that if there is extra infrared participation, will iris identification also cause harm to the eyes? In fact, the infrared wavelength used for iris recognition is between 800-900 nm, with little energy, combined with international safety standards, and maintaining a certain distance. Iris recognition is superior to other biometric technology. Iris recognition technology is based on iris recognition in eyes. The iris is a circular part between the black pupil and the white sclera. It contains many interlaced spots, filaments, coronal, stripes, and recesses. Moreover, the iris will remain unchanged throughout the course of life after the development stage of the fetus. These characteristics determine the uniqueness of iris features and determine the uniqueness of identity recognition. Therefore, the iris feature of the eye can be used as the identity object of everyone. We need to point out that eye pattern recognition and iris recognition are two different concepts. Iris recognition is superior to eye pattern recognition in terms of fault tolerance, information quantity and stability. Eye pattern recognition is based on the recognition of the white eye (sclera), while iris recognition is for the identification of the iris part of the pupil. Previously, Microsoft, ZTE, TCL and VIVO all introduced the eye recognition phone, and the response was poor. The main reason is that the eye pattern recognition has large information error due to the information collected from the eyes. At the same time, the recognition of the eye pattern is based on the existing ordinary front camera. Firstly, the influence of the ambient light is very large. Secondly, the recognition of the camera is very important. Slow speed. Eye pattern recognition technology is different from iris recognition technology / iris texture biometric technology, mainly refers to fingerprint, face, iris, palmprint, gait and other human biometric authentication technology, its most important purpose is to ensure safety. Iris recognition is best able to stand out because of its highest level of security. The five advantages of iris recognition are compared with the current popular fingerprint recognition and face recognition. Iris recognition occupies an absolute advantage in accuracy, stability, reproducible and in vivo detection. The performance of the three mainstream biometrics is compared, for example, the accuracy of iris recognition is higher than that of fingerprint recognition. The iris measurement technology can read 266 feature points, while other biometric technology can only read 13-60 feature points. According to Fujitsu's data, the error recognition of iris recognition may be 1/1500000, while Apple TouchID's error recognition may be 1/50000, and the accuracy of iris recognition is as high as thirty times of the current fingerprint scheme. The characteristics of iris recognition and fingerprint recognition are compared with the feature points of iris recognition. The feature points of fingerprint recognition are not only excellent in security, but also in the user experience of iris recognition. For mobile phones with fingerprint recognition function, fingers can be wet or peeled or even damaged, which will affect fingerprint recognition. Because of the accuracy of recognition, it is usually necessary to identify several times to verify the user experience. Iris recognition only requires the lens to be prepared, and it does not need to be deliberately matched. Even under the natural conditions of 30 centimeters, even with glasses, it can be completed in less than one second. In biometrics, fingerprint recognition is the most popular method at present. Fingerprint recognition has been widely popularized and penetrated into privacy, encryption and payment scenarios. But this does not mean that iris recognition will be at a disadvantage. The security of iris recognition can not be appended, so it can play an important role in some high-level security scenarios. For example, the payment authentication scenario, users only need to give the phone a look, you can complete the payment, it is safe and convenient. Therefore, fingerprint and iris have their own advantages and are suitable for different scenes. On the whole, fingerprint recognition industry is mature and its application ecology is perfect. It is still the main choice of mobile terminals. Iris recognition, as a more advanced existence, will continue to improve and provide strong support for high-level authentication. With the gradual improvement of the ecosystem, iris recognition will also become a mainstream choice. The application scope of iris recognition can be widely applied in the fields of finance, medical treatment, security inspection, security and so on. The initial application of iris scanning is mainly access control. Now, manufacturers of security equipment are trying to occupy the biometrics market, including desktop verification, bank security, electronic payment, file encryption, and even remote authentication and cloud service authentication. At present, iris recognition has been applied in the fields of finance, medical treatment, security inspection, security, special industry attendance and access control, industrial control and so on with its high accuracy and convenience. With the gradual maturity and recognition of technology, iris will recognize future penetration and application fields. Continue to improve, the market space still has very large space. At the same time, the wide use of iris recognition in financial, medical, security, security and other fields also provides an ecological basis for the popularization of consumer electronic terminals. The interaction and blending of different application scenarios will effectively improve the penetration and acceleration of iris recognition and enrich the ecosystem. The application scope of iris recognition technology is: iris recognition industry chain structure.