Researchers have discovered a simple trick to catch people trying to get away with using live deepfake software on a video call.
Many contemporary deepfake programs aren't great at recreating the profile of someone's face according to a new post by Metaphysic. The otherwise realistic illusion falls apart when the deep fakes' heads turn 90 degrees to either side.
Think of this as a potential CAPTCHA for deepfakes. The Better Business Bureau warned us that the technology could be used to steal money or sensitive information.
Most deep fakes are based on front-on facial alignments. Profile shots are not included in most of the visual content that exists out there.
Siwei Lyu is a professor of computer science and engineering at the University at Buffalo.
"If the person is taking requests from the other correspondent in a video call, or from an automated liveness detection system, the best way to estimate the profile would be to roughly estimate it," Lyu said. Even if you have some depth information from some of the newer sensors in your phone, profile estimation is still going to be a guessing game.
There are ways to circumvent the limitation. The entire head could be replaced with a fake one. A person's likeness could be turned into another person's with 3D body- scanning technologies.
There are some easy ways to tell the truth from a fiction novel. Since time immemorial, fraudsters have found new ways to hide their identities online.
If you want to uncover a deep fake video call, ask the caller to turn sideways.
Eerie Deepfake Tech turns a random guy into a famous person.
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