Face detection is not only used for signing users in or creating silly animations, but it could also keep other bus passengers from snooping on your phone. Google researchers Florian Schroff and Hee Jung Ryu are set to present a research into an “electronic screen protector” that makes uses of AI-based eye detection in the front camera to distinguish when other people are looking over your phone or your shoulder. In the demo video, the application switches over to a camera view that humiliates the spy using rainbow vomit — users would know when someone was being intrusive before they even have time to feign innocence.
As the recognition occurs on the phone instead of in the cloud, the technology can recognise a snooping viewer in as early as 2ms. It should also work in various lighting conditions and poses.
There is no mention whatsoever of whether or not this will breakthrough will ever become a shipping feature. We have asked Google if it can disclose more regarding the project ahead of the presentation. However, it is not hard to see this becoming an option, even if it is not something that users would want to run non-stop (as that would likely harm the battery life of the phone of users). Users could turn it on when they are watching a video or reading sensitive email. The feature would not hinder people from seeing things in their peripheral vision. However, it could encourage snooping types to mind their own business.