BEIJING—A Chinese company says it has developed the country’s first facial recognition technology that can identify people when they are wearing a mask, as most are these days because of the coronavirus.
China employs some of the world’s most sophisticated systems of electronic surveillance, including facial recognition.
But the coronavirus, which emerged in Hubei Province late last year, has resulted in almost everyone wearing a surgical mask outdoors in the hope of warding off the virus—posing a particular problem for surveillance.
Now Hanwang Technology Ltd., which also goes by the English name Hanvon, said it has come up with technology that can successfully recognize people even when they are wearing masks.
“If connected to a temperature sensor, it can measure body temperature while identifying the person’s name, and then the system would process the result, say, if it detects a temperature over 38 degrees,” Hanwang Vice President Huang Lei told Reuters in an interview.
The Beijing-based firm said a team of 20 staff used core technology developed over the past 10 years, a sample database of about 6 million unmasked faces and a much smaller database of masked faces, to develop the technology.
The team began work on the system in January, as the coronavirus outbreak gathered pace, and began rolling it out to the market after just a month.
It sells two main types of products that use the technology. One performs “single channel” recognition that is best used at, for example, entrances to office buildings.
The other, more powerful, product is a “multi-channel” recognition system that uses “multiple surveillance cameras.”
It can identify everyone in a crowd of up to 30 people “within a second,” Huang says.
“When wearing a mask, the recognition rate can reach about 95 percent, which can ensure that most people can be identified,” Huang said, adding the success rate for people without mask is about 99.5 percent.
Losing Facial Information
A big customer, not surprisingly, is the Ministry of Public Security, which runs the police.
Using Hanwang’s technology, the ministry can cross-reference images with its own database of names and other information and then identify and track people as they move about, Huang said.
“It can detect crime suspects, terrorists or make reports or warnings,” he said.
But the system struggles to identify people with both a mask and sunglasses, he said.
“In this situation, all of the key facial information is lost. In such cases recognition is tough,” Huang said.
The company has about 200 clients in Beijing using the technology, including the police, and expect scores more across 20 provinces to start installing it soon, Huang said.
It is not immediately clear how Chinese citizens are reacting to this new technology.
When it comes to other surveillance tools being used in the fight against the coronavirus, there has been some grumbling on social media.
Facial Recognition Technology Used to Monitor Citizens
China’s use of facial recognition technology has been criticized for its Orwellian intentions, while concerns have also been raised about the security of biometric data collected.
Chinese financial magazine Caixin reported on Nov. 30 that facial recognition cameras have been installed in many places and businesses across the country, and used “for making payments, to record attendance in the workplace, and to take the subway.”
The Chinese regime has used facial recognition systems to monitor the population for several years. The system has helped authorities track criminals and dissidents, and also facilitates the implementation of Beijing’s social credit system.
The social credit system assigns each citizen a score of social “trustworthiness.” A person with a low social credit score may not be allowed to board a train or airplane, or their child may not be admitted to a reputable school.
Concerns have also been raised about the security of biometric data collected by facial recognition cameras.
Chinese state-run media Beijing Youth Daily reported on Sept. 11 that its reporter, posing as an online shopper, managed to purchase from an online store personal data of around 2,000 people.
The Epoch Times contributed to this report.