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A Chinese company says it has created a new facial recognition system that can identify people even if they are wearing masks.
Engineers at the Beijingbased Hanwang Technology Ltd.say their system is the first to be created to effectively identify people wearing face masks.A team of 20 people built the system in about a month.The system is based on existing technologies developed over the past 10 years.The process involved adding a collection of about 6 million unmasked faces and a much smaller collection of masked faces.
Hanwang is now selling two main kinds of products that use the new technology.One performs “single channel” recognition, which is designed to be used at the entrances to buildings.The other product is a “multichannel” recognition system that uses groups of surveillance cameras (监控摄像头)．
“When wearing a mask, the recognition rate can reach about 95 percent, which can ensure that most people can be identified，” said Huang Lei, Hanwang's vice president.He added that the system's success rate for people not wearing a mask is about 99.5 percent.
Huang said Hanwang's technology can be used to identify and track people as they move about.He added the system can identify crime suspects, terrorists or make reports or warnings.
However, the new system struggles to identify people wearing both a mask and sunglasses.“In this situation, all of the key facial information is lost.In such cases recognition is tough，” Huang said.
It was not immediately clear how people were reacting to the new technology.While some have expressed opposition to such tools, many others seem to have showed interest in the new system and accepted it as a way to deal with the current health emergency — the spread of the novel coronavirus (新型冠状病毒)．Huang says he sees the interest likely expanding if the virus continues to spread and the use of face masks increases.
语篇解读：本文是一篇新闻报道。文章主要介绍了北京汉王科技有限公司研发的一种新的面部识别系统，该系统能够有效识别戴口罩的人。
1．What is the second paragraph mainly about?
A．Where the company is located.
B．How the system is developed.
C．When the research work started.
D．What the collection stands for.
解析：选B 段落大意题。根据第二段最后三句可知，第二段主要讲述的是新的面部识别系统是如何开发的。
2．What is the limitation of the new facial recognition system?
A．The poor storage of information.
B．The relatively low recognition rate.
C．Identifying people with both a mask and sunglasses.
D．Tracking the movement of crime suspects and terrorists.
解析：选C 细节理解题。根据倒数第二段中的“However, the new system struggles to identify people wearing both a mask and sunglasses.”可知，这种新的面部识别系统的局限性在于它很难识别同时戴口罩和太阳镜的人。
3．What attitude does Huang Lei hold towards the new technology?
A．Unclear. B．Optimistic.
C．Opposed. D．Worried.
解析：选B 观点态度题。根据第四段中黄磊对新系统识别率的陈述及最后一段最后一句可推知，黄磊对这项新技术持乐观态度。
4．Where is the text most likely from?
A．A travel brochure. B．A health magazine.
C．A medical paper. D．A science report.
解析：选D 文章出处题。根据第一段的内容及下文对该项新技术的介绍可知，这篇文章很可能出自一篇科学报告。
