新面部识别系统,戴口罩能识别
文章来源:未知 文章作者:enread 发布时间:2020-03-26 08:50 字体: [ ]  进入论坛
(单词翻译:双击或拖选)
一家中国公司表示,它研发了一种新的面部识别系统,即使人们佩戴口罩也可以进行面部识别。“当人们佩戴口罩时,识别率可以达到95%左右,这可以确保大多数人都被成功识别。”该公司相关负责人称。
A Chinese company says it has created a new facial recognition1 system that can identify people even if they are wearing masks.
 
Developers began working on the new system in January, when cases of the new coronavirus began rising in China. The fast spread of the virus – which can be deadly – has led most Chinese citizens to wear face masks in public to help reduce infections.
 
China is recognized as a world leader in the development of artificial intelligence and facial recognition systems. Engineers at the Beijing-based Hanwang Technology Ltd. say their system is the first to be created to effectively identify people wearing face masks.
 
The company told the Reuters news agency that 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, the company said.
 
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 “multi-channel” recognition system that uses groups of surveillance cameras. Hanwang’s vice2 president, Huang Lei, told Reuters that the multi-channel system can identify individuals in a crowd of up to 30 people “within a second.”
 
 
“When wearing a mask, the recognition rate can reach about 95 percent, which can ensure that most people can be identified,” Huang said. He added that the system’s success rate for people not wearing a mask is about 99.5 percent.
 
The company says one of the largest users of the new system is China’s Ministry3 of Public Security, which operates the country’s police agencies. The Chinese government widely uses cameras and facial recognition technology for identification4 purposes and to record people’s movements.
 
Huang said officials can use Hanwang’s technology to compare images with ministry records on individuals in order to identify and track people as they move about. The system can identify crime suspects, terrorists5 or make reports or warnings, he added.
 
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 Chinese citizens were reacting to the new technology. The Chinese government has already been using other surveillance tools in the fight against the new coronavirus.
 
While some citizens have expressed opposition6 to such tools, many others seem to have accepted the methods as a way to deal with the current health emergency.
 


点击收听单词发音收听单词发音  

1 recognition zUYxm     
n.承认,认可,认出,认识
参考例句:
  • The place has changed beyond recognition.这地方变得认不出来了。
  • A sudden smile of recognition flashed across his face.他脸上掠过一丝笑意,表示认识对方。
2 vice NU0zQ     
n.坏事;恶习;[pl.]台钳,老虎钳;adj.副的
参考例句:
  • He guarded himself against vice.他避免染上坏习惯。
  • They are sunk in the depth of vice.他们堕入了罪恶的深渊。
3 ministry kD5x2     
n.(政府的)部;牧师
参考例句:
  • They sent a deputation to the ministry to complain.他们派了一个代表团到部里投诉。
  • We probed the Air Ministry statements.我们调查了空军部的记录。
4 identification RbFxK     
n.视为同一,证明同一,确认
参考例句:
  • He's made a formal identification of the body.他正式确认了死者身份。
  • We should have identification card on the person when we go out.我们外出时应随身携带身份证。
5 terrorists d10cfbe9939b9cee5bb50b61e133e37a     
n.恐怖主义者,恐怖分子( terrorist的名词复数 )
参考例句:
  • The terrorists have halted their bloody campaign of violence. 恐怖分子已经停止了他们凶残的暴力活动。
  • They were finally forced to capitulate to the terrorists' demands. 他们最后被迫屈从恐怖分子的要求。
6 opposition eIUxU     
n.反对,敌对
参考例句:
  • The party leader is facing opposition in his own backyard.该党领袖在自己的党內遇到了反对。
  • The police tried to break down the prisoner's opposition.警察设法制住了那个囚犯的反抗。
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