Face ID is one of the most useful and innovative features of modern iPhones. Thanks to this technology, there is no need to remember a password or enter a pattern to unlock our device. Instead, we simply look at the screen and Face ID recognizes us and allows us to access the phone or use Apple Pay.
It is not only more convenient, but also more secure, as it reduces the likelihood of someone guessing or stealing our password. But Face ID goes further, the recognition of our movement is also used to send Memojis or for applications that capture expressions for different uses, and here something key comes into play: ambient lighting.
A matter of illumination
When we talk about motion capture, not identification, there are times when Face ID can be less reliable, especially when we try to use it in low light conditions or in total darkness. In these circumstances what do we do – turn on a light? Not always an option.
Here the best idea is to use the brightness of the screen itself. Raising the brightness to the maximum can illuminate our face and allow the phone to recognize us, as it would normally do. With this we should be able to send Memojis using the front camera in the dark or equivalent uses.
Meanwhile, and just as a comment, let’s remember that Face ID has an illuminator that allows us to unlock our iPhone even in total darkness. Thus, to access the phone, the brightness we have at that moment has nothing to do with the success of the identification.
And some tips to improve Face ID
The success of the identification, as we say, has to do with other factors. Although the system is trained to learn from changes in our faces, very sudden changes can throw it off for a few days. Changes such as when we wear new glasses (very different from the previous ones) or if we get a radical haircut. In these cases, it can be useful to update our Face ID profile so that the phone learns to recognize us with our new changes.
To do this, we simply open the Settings app, enter Face ID and password, delete the face we have configured and add it again. This is not a process that we should repeat frequently, as doing so prevents the system from learning and improving with the unlocks, but at some point it is interesting to keep in mind.
Although Face ID is really accurate and greatly facilitates the use of our devices, there are very specific occasions in which it can be less reliable, especially in the dark. In this case, a little brightness of our same iPhone or iPad will be enough to send our Memoji. Meanwhile, if what we want is to unlock the device, we just have to look at it. The True Depth system, almost like Siri, takes care of everything.
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