Facial recognition technology spots suspect in crowd of 60,000

April 17, 2018
Perhaps once considered little more than a science fiction concept, facial recognition technology is becoming increasingly effective, but with it, privacy concerns continue to grow.

Perhaps once considered little more than a science fiction concept, facial recognition technology is becoming increasingly effective, but with it, privacy concerns continue to grow.

The latest example of this is in Nanjang, China, where police used facial recognition technology to locate a 31-year-old suspect in a concert crowd of nearly 60,000 people. The man, identified only by the surname of Ao, was reportedly wanted for "economic crimes," according to Kan Kan News. Details about Ao, reported Kan Kan News, were in a national database, and when he arrived at the stadium, cameras at the entrances with facial recognition capabilities had identified him and flagged authorities.

"He was completely shocked when we took him away," police officer Li Jintold Xinhua news agency. "He couldn't fathom that police could so quickly capture him in a crowd of 60,000."

Ao’s capture is the latest example of China’s growing use of facial recognition technology. Law enforcement and security officials in China, according to The Washington Post's Simon Denyer, aim to use such technology to track suspect and even predict crimes.Ultimately, officials in China want to create a national surveillance system known as "Xue Liang," or "Sharp Eyes" to monitor the movements of its citizens.

If you thought the Facebook data fiasco was concerning, the database that law enforcement in China is using takes it even further. A vast database of information on every citizen referred to as a public security police cloud infrastructurewas implemented to gather information on criminal and medical records, travel bookings, online purchase and even social media comments — and link it to everyone’s identity card and face, according to The Washington Post.

When Denyer visited three technology companies in China, he was shown people monitoring cars and people as they passed through an intersection and attached to each entry were text bubbles that showed information including the person’s gender and hometown.

The Washington Post article goes on to note that Humans Right Watch has a page dedicated to mass surveillance and the use of "big data" in China, and how it violates privacy rights and enables officials to "arbitrarily detain people."

Facial recognition technology, it could be argued, was always destined to present such problems. Ever been creeped out by Facebook suggesting you tag a friend or family member in a photo that is not yet tagged? Plenty of people have. How do you suppose someone in that situation feels about the ability of a system to find a person in a dark concert in a stadium full of tens of thousands of people?

Now, on the flip side of that, not all headlines involving facial recognition technology are going to focus on the negative. An article posted on The Telegraph on April 17 describes how a mentally ill man—also in China—was missing for over a year, but was found and reunited with his family with the help of China’s "massive and controversial network of facial recognition systems." Other examples of facial recognition technology applications that most would deem "positive" or at least beneficial to society are things like advanced driver assistance systems (ADAS) that monitor drive fatigue, facial recognition for medical purposes such as diagnoses, or biometric authentication.

However, a quick Google News search or even a conversation amongst your friends or family will likely show that there is still some trepidation when it comes to the technology. Still, with a story like this one in Nanjang, China—it has become increasingly difficult to deny its effectiveness.

Image: Washington Post video

View The Washington Post article.
View a video of the police apprehending the suspect.

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About the Author

James Carroll

Since joining the team 2013, James covered machine vision and imaging from numerous angles, including application stories, industry news, market updates, and new products. In addition to writing and editing articles for each issue of the magazine, James managed the Innovators Awards program and webcasts.

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