I can’t swear to you that this is exactly the same depth data that FaceID uses. Maybe it’s been downsampled in some way that makes it safe to give to apps, without enabling attacks on FaceID. I think I’d be a bit more willing to believe that if Apple’s Security docs actually said that. To me it seems more likely that the raw depth maps are available to the app processor (and to apps!) because the SEP isn’t powerful enough to perform the recognition task on its own.
I can’t swear to you that this is exactly the same depth data that FaceID uses. Maybe it’s been downsampled in some way that makes it safe to give to apps, without enabling attacks on FaceID. I think I’d be a bit more willing to believe that if Apple’s Security docs actually said that. To me it seems more likely that the raw depth maps are available to the app processor (and to apps!) because the SEP isn’t powerful enough to perform the recognition task on its own.