How does my iPhone Face ID still recognize me even after I grew a beard and wear sunglasses? How does it know I’m not an imposter in disguise?
In: Technology
There are all sorts of facial recognition algorithms out there, but they mostly all rely on certain key aspects of your facial geometry. A common one is the distance between your eyes, or the distance from one eye to the bridge of your nose. Others include the width of your nose, or the distance from your upper eyelid to your lower eyelid. The algorithms are designed to be tolerant of things like glasses or changes in facial hair. Interestingly, there are [makeup and hair styles designed to defeat facial recognition](https://cvdazzle.com/). You’ll notice that they tend to block an eye or the nose, add bumps to the face, and/or make the face seriously asymmetric.
Latest Answers