Ok if you haven’t seen the concept of “diminished reality” it’s using Augmented Reality to purposely remove or obscure things from our view. The main example is the ability to blank out billboards and replace them with images from a personal album for example.
The video above is from 2010 however there are other great examples of diminished reality which I’ve just found.
This video focuses on using diminished reality (And in a related video Augmented Reality) aiding someone to check the health of a small aircraft. Instead of overlaying commands and highlighting the object the non-relevant objects are taken away by the diminished reality device ( In this case a dial )
If removing elements or highlighting elements is more useful to a learner seems to be an interesting study someone should do.
Another video worth mentioning is the EyeTap device and the working demonstrated ability to remove advertisements as shown here. Although it’s not as refined as other examples it is something to check out.