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  3. Face masks are one of the best defenses against the spread of COVID-19, but their growing adoption is having a second, unintende

Face masks are one of the best defenses against the spread of COVID-19, but their growing adoption is having a second, unintende

admin2021-03-27  7
问题        Face masks are one of the best defenses against the spread of COVID-19, but their growing adoption is having a second, unintended effect：breaking facial recognition algorithms(算法).
       Wearing face masks that adequately cover the mouth and nose causes the error rate of some of the most widely used facial recognition algorithms to rise to between 5 percent and 50 percent, a study by the US National Institute of Standards and Technology (NIST) has found. Black masks were more likely to cause errors than blue masks, and the more of the nose covered by the mask, the harder the algorithms found it to identify the face.
       "We need to understand how face recognition technology deals with masked faces," said the author of the report and NIST computer scientist. "We have begun by focusing on how an algorithm developed before the pandemic (大流行病) might be affected by subjects wearing face masks. Later this summer, we plan to test the accuracy of algorithms that were intentionally developed with masked faces in mind. "
       Facial recognition algorithms such as those tested by NIST work by measuring the distances between features in a target’s face. Masks reduce the accuracy of these algorithms by removing most of these features, although some still remain. This is slightly different from how facial recognition works on iPhones, for example, which use depth sensors for extra security, ensuring that the algorithms can’t be fooled by showing the camera a picture (a danger that is not present in the scenarios NIST is concerned with).
       Comment 1：
       Well, that’s one good thing to come out of the pandemic. Mass surveillance is nonsense. Time to pair masks up with sunglasses to deliver the decisive stroke.
       Comment 2：
       "Wearing face masks that adequately cover the mouth and nose causes the error rate of some of the most widely used facial recognition algorithms to rise sharply" Rubbish technology! I would’ve never guessed.
       Comment 3：
       There’s a reason why some country is already using gait(步态) analysis. Facial recognition is too easy to block or to fool.
       Comment 4：
       Pretty soon they are going to do…analysis. With the development of AI, there will be a way out.
       Comment 5：
       The AI’s getting better, though, so soon it won’t matter. Just like how you can pick out a relative or close friend even in bad CCTV footage, so too can AI. Your height, walking gait, mannerisms, voice, ears, clothing, etc, all add up to YOU.
Which comment views the current facial recognition technology with contempt?
选项 A、Comment 2.
B、Comment 3.
C、Comment 4.
D、Comment 5.
答案A
解析 根据评论2“Wearing face masks that adequately cover the mouth and nose causes the error rate of some of the most..”即“戴上能充分遮住嘴和鼻子的口罩会导致一些最广泛使用的面部识别算法的错误率急剧上升”“垃圾科技!我万万想不到。”可知评论2对面部识别技术持轻视态度，故选A。
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