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Trend analysis of three biometric technologies (fingerprint, face, iris)|HFSecurity

  • Author:HFSecurity
  • Release on :2019-08-13

Biometric technology, through computer and optical, acoustic, biosensor and biostatistics and other high-tech means, using the inherent physiological characteristics of the human body (such as fingerprints, faces, irises, etc.) and behavioral features (such as handwriting, sound, Gait, etc.) to identify individuals.

Biometrics is by far the most convenient and secure identification technology. According to the US consulting firm Transparency Market Research, the global biometrics market will grow from US$11.24 billion in 2015 to US$23.3 billion in 2020. The growth rate was 15.7%. The biometrics market is experiencing rapid growth.

In the global biometric market structure, the fingerprint recognition share is 58%, and the face recognition share is 18%, followed by the emerging iris recognition with a share of 7%. In addition, there is palmprint recognition similar to fingerprint recognition. , as well as voiceprint recognition and vein recognition. What are the advantages and disadvantages of each biometric identification, what difficulties need to be overcome in the process of industrialization, and what are the representative enterprises of each type of biometrics. Today's article will be described in detail.

Face recognition


The human face is as natural as other biological characteristics of the human body (fingerprint, iris, etc.). Its uniqueness and good characteristics that are not easily reproduced provide the necessary premise for identity identification, and face recognition compared with other types of biometrics. Has the following characteristics:

Non-mandatory: the user does not need to cooperate with the face collection device, and the face image can be obtained almost in an unconscious state. Such sampling method is not “mandatory”;

Non-contact: Users can obtain facial images without direct contact with the device;

Concurrency: In the actual application scenario, multiple face sorting, judgment and recognition can be performed;

It conforms to the visual characteristics: the characteristics of “seeing people”, as well as the features of simple operation, intuitive results and good concealment.

At present, the face recognition technology is very mature, and the domestic industrial chain is also becoming more and more perfect. At present, almost all computer vision enterprises are doing face recognition, such as Vision Technology, Geling Squat, Shangtang Technology, and Christie Extension and so on.

Face recognition has a relatively high level of convenience while its security is relatively weak. The accuracy of recognition will be affected by many factors such as the ambient light and recognition distance. In addition, when the user makes some changes to the face through makeup and facelifting, it will also affect the accuracy of face recognition. These are all technical problems that enterprises need to break through.


Fingerprint recognition


China's second-generation ID card has achieved fingerprint collection, and all major smartphones have realized fingerprint unlocking. Compared with other biometric technologies, fingerprint recognition has been widely used in consumer electronics, security and other industries. Through time and practice testing, technology is constantly innovating. At present, China has already formed a complete fingerprint identification industry chain. For example, Huiding Technology, a listed company engaged in fingerprint chip design, and a domestic fingerprint identification chip manufacturer such as Si Liwei, Fei Engel and Mindwei.

Although each person's fingerprint recognition is unique, it does not apply to every industry and everyone. For example, people who work with their hands for a long time will be troubled by fingerprint recognition. If their fingers are damaged or wet or dry, the fingerprint recognition function will be invalid. In addition, in an environment with severe cold or cold weather, or where people need to wear gloves for a long time, this will make fingerprint recognition less convenient.


Iris recognition

The structure of the human eye consists of the sclera, iris, pupillary lens, retina and the like. After the iris is formed in the fetal development stage, it will remain unchanged throughout the life course. These characteristics determine the uniqueness of the iris characteristics and also determine the uniqueness of the identity. Therefore, the iris feature of the eye can be used as an identification object for each person.

According to Fujitsu data, the iris recognition error recognition may be 1/1500000, while the Apple TouchID error recognition may be 1/50000, the iris recognition accuracy is up to 30 times that of the current fingerprint scheme, and the iris recognition is non-contact. Recognition, recognition is very convenient and efficient. In addition, iris recognition is unique, stable, non-replicable, and in vivo detection. It has an absolute advantage in comprehensive safety performance, and the safety level is currently the highest.

At present, iris recognition has been widely used in financial, medical, security, security, special industry attendance and access control, industrial control and other fields due to its high accuracy and ease of use. Domestic representatives in the field of iris recognition include Zhongke Hongba, Hongxing Technology, Juhong Optoelectronics, Wuhan Rainbow, and Dahua.

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