Why the Face ID unlock with a mask feature will only work on iPhone 12 and above
為什麼只有iPhone 12及以上才支援人臉口罩解鎖？
We all cried and whined when we discovered Apple’s Face ID system wasn’t compatible with face masks. And while the company introduced a few workarounds, it’s now ready for the real deal: Face ID that works with a mask on*.
當我們發現蘋果人臉識別系統不能相容口罩時，我們都很不滿。與此同時蘋果公司採用了幾個解決方案，這即將變為現實：戴口罩也能人臉識別*。
You might ask why there’s an asterisk sign? It’s not a typo. It’s there because this new system will only work with iPhone 12 and above. BOOOOOOO!
你可能會問為什麼有一個星號？這不是打錯了字。之所以有型號是因為新系統只適用於
iPhone 12及以上版本手機。
Apple’s reasoning behind this is that the feature requires “advancements in the True Depth camera system.” And apparently, the pleb Face ID system on the iPhone 11 is not powerful enough.
Sadly, this mask-unlocking feature won’t work with iPad Pros at the moment either.
蘋果對此的解釋是這一功能需要“True Depth攝像系統的高階功能”。顯然，iPhone 11上的普通人臉識別系統還不夠強大。
讓人難過的是，這個口罩人臉識別功能暫時也不適用於iPad Pro。
How will this work?
Apple’s currently testing this out with the iOS 15.4 public beta, and will roll
it out to all users in the coming months. To make Face ID work, the
company has worked on new algorithms, trained to identify areas around the eye region to unlock your device.
它是怎樣工作的?
蘋果當前在iOS 15.4 beta公開版本中進行測試，在未來幾個月會推送。為實現人臉識別，公司開發了新的演算法，訓練其識別眼部周圍區域以便解鎖裝置。
The firm claimed that this new feature’s security levels are the same as Face ID without a mask — an error rate of 1 in 1,000,000 tries.
Currently, your iPhone can recognize your face when you’re trying to unlock
it at an angle. However, to make it work accurately while wearing a mask, you’ll have to directly look at the iPhone.
公司聲稱新功能的安全級別與不戴口罩人臉識別相同——即錯誤率是百萬分之一。
目前，當你想從某個角度解鎖你的iPhone手機時，你的手機能夠識別你的面部。但是，當帶著口罩時，想要精準識別，你必須直視手機。
What if I wear glasses?
The new version of Face ID will support unlocking with a mask even if you
were wearing glasses. While it’s advisable to register your full face with glasses when you do the initial scan, you can add spectacles later. For
security reasons, Apple will allow up to four pairs of eyewear with each enrollment.
如果我戴眼鏡了呢?
新版本的人臉識別支援口罩解鎖，即使你戴著眼鏡。但是建議你第一次掃描面部時要錄入全臉，此後再加上眼鏡。出於安全的原因，蘋果允許每次錄入四幅眼鏡。
Okay, I have a compatible iPhone. What do I do?
If you’re itching to use this feature, you can go ahead and sign up for the iOS public beta to download iOS 15.4. You can read more about how to install a beta version on your phone here.
If you don’t want to do that, you might have to wait for a while before the update arrives.
好吧，如果我有一個相容口罩的蘋果手機，我要怎麼做?
如果你想使用這一功能，你可以去註冊iOS beta公開版並下載iOS 15.4。在這裡你可以看到更多指導你如何安裝beta版本到你的手機上。
如果你不想這樣做，你可能需要等一段時間才能升級。
What about other iPhones?
At this time, you’re out of luck. But there are some alternatives: if you own
an Apple Watch, you can read our guide to set up your iPhone to unlock when you’re wearing a mask. In other cases, Apple has made it faster to bring up the passcode screen in just a few seconds if Face ID detects you’re wearing a mask.
We’ll update you with a detailed guide when this feature rolls out to everyone. Hopefully, we won’t have to wait long.
其他手機呢?
這次你就沒有那麼幸運了。但是有幾個替代方案：如果你有Apple Watch，你可以讀一讀說明，設定手機，當你戴口罩時解鎖手機。其他情況下，如果人臉識別檢測到你戴著口罩，它會在幾秒之內更快地喚醒密碼介面。
當這個功能推送給大家的時候，我們會升級詳細說明。希望不會等待太長時間。
