What Is an Automated Fingerprint Identification System?

The fingerprint recognition system is a typical pattern recognition system, which includes modules such as fingerprint image acquisition, processing, feature extraction and comparison. Live fingerprint images can be collected through a special fingerprint reader. At present, fingerprint collection instruments mainly include living optical type, capacitive type and pressure sensitive type. For technical indicators such as resolution and acquisition area, the public security industry has formed international and domestic standards, but others lack a unified standard. According to the collected fingerprint area, it can be roughly divided into rolling fingerprints and flat fingerprints. The public security industry generally uses rolling fingerprints. In addition, fingerprint images can also be acquired by scanners, digital cameras, and the like.

Fingerprint recognition system refers to the use of scientific technology to carry out human fingerprints.

Because the orientation of each seal is not exactly the same, different focus points will cause different degrees of deformation, and there are a lot of fuzzy fingerprints. How to correctly extract features and achieve correct matching is

According to fingerprint experts, a person's fingerprint has a probability of repetition of 1 in 5 billion, which is almost zero. Using fingerprints to identify criminals is the most convincing, and fingerprints are therefore called the "king of evidence."

As one of the important evidences, in the previous case-solving work, the technicians needed to hold a magnifying glass and check the fingerprints extracted on the spot in hundreds of thousands of fingerprint files. Sometimes it took more than a dozen people to work for two months. It is possible to find the same fingerprint. In the early 1990s, the Beijing Municipal Public Security Bureau's Criminal Science and Technology Research Institute (hereinafter referred to as the Criminal Research Institute) successfully developed an automatic fingerprint identification system with international advanced level and in line with the actual needs of China's criminal investigation department, completely ending this heavy physical strength labor.

The fingerprint recognition system does the same job in as little as 5 minutes. The fingerprints extracted by the police from the scene of the crime, whether they are blurred, incomplete, deformed, or even intentionally destroyed, can be compared to the same fingerprint and the owner of the fingerprint within a few minutes after being scanned into the computer, or the user can be notified in the database. Does not have the same fingerprint. This system has made great contributions in the detection of major criminal cases such as the robbery of a series of banknote transport vehicles in Luxianzhou.

This system has been promoted and used in public security organs across the country, and a large database of former fingerprint fingerprint files has been established, and most of them have been remotely compared. Using this system, Beijing detected 117 criminal cases in 1999, and nearly 100 cases have been solved. Since the promotion of this system throughout the country, more than 10,000 cases have been resolved, and economic losses have reached more than 100 million yuan.