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The more complicated systems either take a 3D scan of your face or use an IR camera (the later can be fooled by an IR photo...)
by bluedino 7y ago
The more complicated systems either take a 3D scan of your face or use an IR camera (the later can be fooled by an IR photo...)
- nokcha 7y ago>an IR photo Is such a thing possible? My understanding is that IR emission from ordinary objects is primarily determined by their temperature. To imitate the IR signature of a human face, one would need a special-purpose, actively-powered device.