What is the false rejection rate and false acceptance rate of smart lock fingerprint recognition?

With the popularization of smart locks, we often encounter various problems when purchasing smart locks, such as some professional terms about fingerprint locks that we cannot understand, such as what is the false rejection rate and false recognition rate of fingerprint recognition of smart locks. ? The following is to introduce what is the false rejection rate and false recognition rate of fingerprint lock.

In simple terms, the false rejection rate of smart lock fingerprint recognition is the same fingerprint, which is recognized by the algorithm as different; the false recognition rate of smart lock fingerprint recognition is the different fingerprint, which is recognized by the algorithm as the same.

The false rejection rate and false recognition rate of smart lock fingerprint recognition can also be called the rejection rate and false recognition rate. The false rejection rate is FRR, that is, the real fingerprint image is regarded as false. The false recognition rate is FAR, that is, the fake fingerprint image is regarded as real. Affecting the fingerprint lock fingerprint head false rejection rate and false acceptance rate is related to the resolution of the fingerprint head acquisition window and the method of obtaining fingerprints in fingerprint recognition technology.

The true rejection rate and false recognition rate of smart lock fingerprint recognition are important indicators for evaluating the pros and cons of fingerprint lock fingerprint heads. The good rejection rate and false recognition rate of smart lock fingerprint recognition directly affect the response time and fingerprint recognition of fingerprint lock Accuracy, which affects the user experience and the security performance of the fingerprint lock.

At present, the resolution ratios of fingerprint heads on the market are all above 500 DPI, that is, 500 pixels per inch, that is, theoretically, there can be 500 information points in the fingerprint image per inch for comparison and identification.

Earlier, the Ministry of Public Security issued the standard of false rejection rate and false acceptance rate: the false rejection rate should be <3%, and the false acceptance rate = <0.001%. According to relevant standards, the security level of smart locks for home entry doors should be level 3, that is, the rejection rate is <0.1%, and the false acceptance rate = <0.001%. The resolution of the fingerprint head used by many smart lock brands is also roughly within this range. The specific indicators may differ, but as long as it is a brand manufacturer's product, the user experience will not be much different.

There is a relationship between "rejection rate and false recognition rate". At the same level, the higher the false rejection rate, the lower the false recognition rate, and vice versa. This is an inverse relationship. However, if the process and technology level are improved, both of these indicators can be reduced. In essence, the technical level must be improved. However, in order to speed up the certification, some manufacturers use the method of reducing the security level to sacrifice security to create the illusion of fast speed and strong recognition ability. This situation occurs more often in some sample locks or demonstration locks. For some model locks, please don't try to buy it cheaply.

Share what the false rejection rate and false acceptance rate of smart lock is here today, and hope to help everyone.