Fingerprint recognition, iris recognition, brain pattern recognition? We are no longer strangers to these technologies, but have you ever heard of a "lip code" system? Face is no longer fresh, future or popular lip language password. Fingerprint recognition lip gloss password system is difficult to "solution" Fingerprint recognition lip gloss password system is difficult to "solution" Lip language verification rely on? The reason why people can make use of human biological characteristics for identity authentication is because human biological characteristics are usually unique, measurable or can be automatically identified and validated, hereditary or unchanged for a long time, through computer and optical, acoustic, biological sensors And biostatistics and other high-tech means of combining closely use the human body's inherent physiological characteristics and behavioral characteristics for personal identification. So lip password in the end is what kind of technology? The "Lip Code" ("lip code") system is the world's first lip motion and password authentication technology developed by the Hong Kong Baptist University. It uses double verification to improve the security of the system. The "lip code" system extracts visual features such as shape, texture and motion from the lip image sequence, establishes a model through training and determines the threshold to decide whether to accept or reject the password. Lip password by the United States patented security or breakthrough or combination Zhang Xiaoming, a professor in the Department of Computer Science at Baptist University who is in charge of the research, introduced using the "lip code" system first to register and read the password ten times in front of the camera with the lip language. After the settings were completed, Read the password once before the lens, the system will be able to rely on the user's lips for identity authentication. In addition to the advantages of simple operation, lip language password and other "extraordinary place." Is a living certification, a high degree of non-replicability, Zhang Xiaoming said that even if two people say the same sentence in front of the system lens, lip movements are not the same characteristics, the system can identify two identities, rejecting counterfeiters. And when the same person said the same sentence, although there will be subtle differences every time, but does not affect the system identification. He said the lip code system has an accuracy of 90%. Once a static biometric is stolen, it can not be reset, but the Lipcode user can change the password at will. High stability, the use of "lip code" do not make a sound, free from background noise. No language restrictions, speak any language or dialect can use the "lip code." So, in summary, lip password is still very reliable for authentication. Lip password + security =? The characteristics of a technology to a large extent determine the application of the way it will face the market areas, the advantages determine the value and application of the market, the short board to determine the size of the application market. Lip language password system is a kind of special "password". Compared with other biometrics, the application of lip language password is narrower. The fingerprint, face and iris are unique to each independent individual , Except that you can verify that "you are the key" can be used as a tool to verify that "you are you" and that the lip-password can only verify that "you are the key." Therefore, when the lip language password is used for security, its existence should be in the form of "lip-language access control." At present, the most widely used access control system is mainly credit card access control and password lock, but there is a risk of being easily lost and easily being stolen and copied. The lip password has its advantages in terms of safety, convenience and manageability, Suitable for higher level entry security, such as corporate entrances and private homes. In addition to access control, lip password can also be used to unlock the phone and property transactions password. Compared with other biometrics, the lip language password is used for unlocking the mobile phone without the need to install other devices, which is more concise, beautiful and convenient; the cost is low and the popularity is more universal. Lip password can also be used for online payment password, ATMs and credit card passwords. Digital passwords are easy to forget, change the password a large number of procedures, biometrics just solve the problem; compared to face recognition and fingerprinting, lip password password authentication and non-reproducibility of safer, more suitable for payment password verification . How far from innovative technology to practical application As a recent research result, lip-language password recognition technology has not yet been put into any practical project, said Zhang Xiaoming, a professor in Computer Science at Baptist University who is responsible for the research. He said he expects the technology to be available in the market in a year. Although there are many advantages lip password, but the face of the existing biometric technology and technical requirements of various industries, lip password recognition technology to enter the market there is "homework" to do, after all, lip password also has its own deficiencies . Lip key password recognition technology lies in the need to verify through the lens, so in a low visibility environment, the lip language password is difficult to identify and verify the use of the environment have certain requirements; lip language password recognition technology is to capture It is required that a verifier's high degree of cooperation be used to record the verifier's lips and behavioral characteristics. It is understood that at present, the accuracy of the lip-language password system is 90%, which is not bad. However, Fingerprint recognition system 0.8%, 0.3% face recognition and iris recognition 0.00001% false recognition rate, the accuracy of lip language password also need "hard" hard work. In addition to these "technical shortcomings," as a state-of-the-art technology, it takes a long time to experiment repeatedly to get to market to achieve large-scale application, proving the rationality and stability of its application, continuously polishing technology and improving accuracy , Let the technology mature as soon as possible, but it will take a long time. After all, it has been more than two decades since the most widely used fingerprinting technology was introduced into the civilian market in the 1990s; nowadays the hottest face recognition technology has gone from entering the Chinese market Decades of grinding and development. In view of this, from technology to practical application but also "SanSanShiJian" continue to "calamity" in order to "soar".