Iris recognition technology principles, advantages, supply chain structure, are here!

Due to the rise of the demand for mobile payments, Samsung's latest flagship smartphone Note7 iris recognition function has been listed as standard, is expected to drive other brands to launch the relevant specifications of the application of hardware arms race.

What exactly is iris recognition technology? What is the current situation? The following summarizes the iris recognition technology, development potential, the layout of the manufacturers.

Iris recognition part

Iris recognition system includes iris image acquisition device, live iris detection algorithm, feature extraction and matching of three modules.

Iris image acquisition is the first step in iris recognition, the iris area is small, and the color of the iris is very different. These make the ordinary camera can not capture a clear iris image can be used to identify. So it is necessary to use GE iris image acquisition assembly special, including infrared optical imaging system, electronic control unit and the appropriate software (such as image restoration and enhancement algorithm, focusing judgment algorithm).

Feature extraction and matching is the core part of iris recognition system, which uses the effective features to describe the iris image, and describes the similarity between feature vectors. Finally, the information collected by the system is compared with the information in the database to determine the user's identity and authority.

Note7 iris recognition

Note7, iris recognition consists of two parts: a LED infrared emission device and a special charge of iris scanning infrared camera, both with the process of scanning and recognition. So in front of the top Note7, in addition to the traditional lead and infrared camera, infrared camera and LED two holes.

According to South Korean media reports, Samsung released the iris recognition algorithm is mainly equipped with Note7 from Samsung's own R & D, infrared camera module from the Korean manufacturer Patron, infrared LED provided by OSRAM.

Iris identification system flow

Iris identification system flow

For example: iris recognition Note7 work is mainly through the infrared scanning to achieve iris unlock when the actual application of the use of a light emitting diode (Hong Waiguang) and the light receiving sensor, in iris detection, first open the LED infrared, infrared LED issued by Hong Waiguang, hit the eye and then reflected back, by infrared Camera camera image capture, back-end recognition algorithm.

Iris recognition principle

Iris recognition principle

For example, Samsung Note7 iris recognition system contains a specific infrared LED light source, in order to launch infrared assisted scanning, you can ensure the normal use of the evening iris recognition.

Some people can not help but worry, since there is additional infrared involvement, the use of iris recognition will also cause harm to the eyes? In fact, not for iris recognition in the infrared wavelength of 800-900 nm, the energy is small, complex international security standards, to maintain a certain distance can be assured.

Iris recognition is superior to other biometric technologies

Iris recognition technology is based on the iris in the eye for identification. The iris is a circular part between the black pupil and the white sclera, which contains a number of overlapping features of the spots, filaments, coronal, stripes, crypts, and so on.

Moreover, after the formation of the fetus, the iris will remain unchanged throughout the life course. These characteristics determine the uniqueness of iris feature, and also determine the uniqueness of identity. Therefore, the iris feature of the eye can be used as the identification object of each person.

We need to point out that there are two different concepts of eye pattern recognition and iris recognition, and iris recognition is superior to the recognition of fault tolerance, information and stability. Eye recognition is for whites (sclera) for recognition, and iris recognition is the outer ring part of the pupil (IRIS) for recognition.

Previously, Microsoft, ZTE, TCL, VIVO have launched mobile phone lines eye recognition, poor response, the main reason is the eye recognition is white as a result of the acquisition of information, information error, and eye recognition by common front camera the first effect of ambient light is very large, then the camera's slow speed of recognition.

The pattern recognition technology is different from the iris recognition technology

Biometric technology is mainly through the fingerprint, face, iris, palmprint, gait and other human biometric identity authentication technology, its most important purpose is to protect the security. Iris recognition is able to stand out, thanks to its highest level of security performance.

Five advantages of iris recognition

Compared with the current popular fingerprint recognition and face recognition, iris recognition has the absolute advantage in accuracy, stability, replicability, and in vivo detection.

Performance comparison of three mainstream biometric features

For example, compared to fingerprint recognition, iris recognition accuracy is higher. 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, and apple TouchID error recognition may be 1/50000, the accuracy of iris recognition up to thirty times the current fingerprint scheme.

Comparison of iris recognition and fingerprint recognition