Wearing Masks Stumps Facial Recognition Algorithms

Facial recognition is suffering hard times due to face masks, but it is only a matter of time before algorithms are developed that add in whole body features, including heartbeat, gait, size, etc. ⁃ Technocracy News & Trends Editor Patrick Wood

Many facial recognition companies have claimed they can identify people with pinpoint accuracy even while they’re wearing face masks, but the latest results from a study show that the coverings are dramatically increasing error rates.

In an update Tuesday, the US National Institute of Standards and Technology looked at 41 facial recognition algorithms submitted after the COVID-19 pandemic was declared in mid-March. Many of these algorithms were designed with face masks in mind, and claimed that they were still able to accurately identify people, even when half of their face was covered.

In July, NIST released a report noting that face masks were thwarting regular facial recognition algorithms, with error rates ranging from 5% to 50%. NIST is widely considered the leading authority on facial recognition accuracy testing, and expected algorithms to improve on identifying people in face masks.

That day has yet to come, as every algorithm experienced marginal increases in error rates once masks came into the picture. While some algorithms still had accuracy overall, like Chinese facial recognition company Dahua’s algorithm error rate going from 0.3% without masks to 6% with masks, others had error rates increasing up to 99%.

Rank One, a facial recognition provider used in cities like Detroit, had an error rate of 0.6% without masks, and a 34.5% error rate once masks were digitally applied. In May, the company started offering “periocular recognition,” which claimed to be able to identify people just off their eyes and nose.

Rank One CEO Brendan Klare said the company wasn’t able to submit that algorithm to NIST because of the agency’s limit to one submission per organization.

“Thus, the NIST mask study does not reflect our ability to perform identification in the presence of masks,” Klare said in an email.

TrueFace, which is used in schools and on Air Force bases, saw its algorithm error rate go from 0.9% to 34.8% once masks were added. The company’s CEO, Shaun Moore, told CNN on Aug. 12 that its researchers were working on a better algorithm for detecting beyond masks.

TrueFace didn’t respond to a request for comment.



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Sourced from Technocracy News & Trends

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