Why does taking photos reveal fingerprint information more than scissorhands?

1 ? ? On the morning of the 5th, Andy, vice chairman of Shanghai Information Security Industry Association, gave a scary reminder at Shanghai National Cyber Security Publicity Week: If the camera is close enough when taking pictures, people's fingerprint information can be restored through photo enlargement and artificial intelligence technology. "Basically, the' Scissorhands' photos taken within 1.5 meters can restore 100% of the subject's fingerprints, and photos taken within 1.5 meters -3 meters can restore 50% of the fingerprints. It is difficult to extract fingerprints from photos taken more than 3 meters. "

? Fingerprint information is extracted from photos, and then the fingerprint film is made of professional materials, which can be used by criminals in various channels to identify identity through fingerprint technology, such as fingerprint door lock and fingerprint payment. Netizen: You are afraid of underestimating beauty ... When this statement came out, it quickly set off a hot discussion on the Internet.

? Zang Yali, an associate researcher at the Institute of Automation, Chinese Academy of Sciences, told reporters that taking photos and taking fingerprints should be carried out under very harsh conditions. The camera has better resolution, better imaging angle and better ambient light. It's not that you take a picture with a camera, and your fingerprints will be there. Although fingerprint extraction has high requirements for photos, the camera function of mobile phones is becoming more and more powerful, and many young people will take many selfies a day. It seems not difficult to find some photos with clear fingerprints!

? Therefore, Andy, Deputy Director, reminded not only not to provide your fingerprints to strangers, not to input fingerprints on untrusted equipment, not to take photos of scissorhands within 3 meters, and not to post photos with your fingerprints on the Internet. In addition, if there is a fingerprint door lock at home, try to set the fingerprint and password to open it, so as to ensure safety.