What is the rejection rate and false recognition rate of intelligent lock fingerprint recognition?
With the popularization of smart locks, we often encounter various problems when choosing smart locks, such as some professional terms about fingerprint locks that we cannot understand, such as what is the rejection rate and recognition rate of smart lock fingerprint recognition? Below, we will introduce what is the rejection rate and recognition rate of fingerprint locks.
Simply put, the rejection rate of intelligent lock fingerprint recognition is that the same fingerprint is recognized as different by the algorithm; The false recognition rate of smart lock fingerprint recognition is that different fingerprints are recognized as the same by the algorithm.
The rejection rate and false recognition rate of intelligent lock fingerprint recognition can also be referred to as rejection rate and false recognition rate. Refusal rate, also known as FRR, refers to the recognition of genuine fingerprint images as fake. Fake recognition rate, also known as FAR, refers to the recognition of fake fingerprint images as real. The impact of fingerprint lock on the rejection rate and recognition rate of fingerprint heads is related to the resolution of the fingerprint head acquisition window and the method of obtaining fingerprints in fingerprint recognition technology.
The rejection rate and recognition rate of intelligent lock fingerprint recognition are important indicators for evaluating the quality of fingerprint lock heads. The rejection rate and recognition rate of intelligent lock fingerprint recognition directly affect the response time of the fingerprint lock and the accuracy of fingerprint recognition, thereby affecting the user experience and the security performance of the fingerprint lock.
Currently, the resolution of fingerprint heads on the market is above 500DPI, which means there are 500 pixels per inch. Theoretically, there can be 500 information points for comparison and recognition in each inch of fingerprint image.
The standards for rejection rate and false acceptance rate previously issued by the Ministry of Public Security were: rejection rate should be less than 3%, and false acceptance rate should be less than 0.001%. According to relevant standards, the security level of smart locks for household entrance doors should be level 3, with a false rejection rate of<0.1% and a false recognition rate of<0.001%. Many smart lock brands use fingerprint head resolutions that are roughly within this range for promotion, and specific indicators may vary. However, as long as it is a product from a brand manufacturer, the user experience will not differ significantly.
There is a trade-off between the rejection rate and the recognition rate. At the same level, if the rejection rate is high, the recognition rate is low, and vice versa. This is an inverse relationship. But if the process and technical level are improved, both indicators can be lowered, and essentially, the technical level still needs to be improved. But some manufacturers, in order to speed up certification, sacrifice safety by lowering the security level to create fake images with fast speed and strong recognition ability. This situation is more common in some model locks or demonstration locks, so people should not buy and use some model locks at a cheap price.
*Originally from Lock World, if involved in copyright issues, please contact us for prompt deletion.