阅读短文,从每小题所给的四个选项中,选出能回答所提问题或完成所给句子的最佳答案Facial-recognition cameras are everywhere — even in your smartphone. Many people use this technology to unlock their phones, open doors, or make quick payments. But there is a problem during the epidemic(流行病): everyone wears masks. What a headache!
Scientists are trying to solve this problem. For example, E&T Magazine reports that Hanvon, a tech company in Beijing, has made a new system. It can recognize(辨认) over 95% of people when they wear masks.
What's the secret? It's all about your eyes. Marios Savvides from Carnegie Mellon University studies facial-recognition. As we get older, he says, our faces change shape. But the area around our eyes stays almost the same — even if we put on weight. As long as there are enough data from the area of our eyes, the cameras can recognize us.
TECH5 is another facial-recognition company. The Swiss company's products scan(扫描) the shape of your face. They also scan your irises, which are the colored parts of your eyes. TECH5 hopes to ignore(忽略) all of the face below the nose.
This kind of software has a more important use than just unlocking your phone. "It can discover criminals, even when they wear masks, " said Huang Lei from Hanvon. Hanvon's technology is used by Chinese police in places like subway stations and airports. Similar technology is used by the United States Air Force.
Huang pointed out one big weakness: it fails when people wear both a mask and sunglasses. "In this situation, all of the key facial information is lost, " Huang said.