I’ve seen a lot of projection-based AR in recent years, but this is probably the best example.
I think it could have used a lenghty pre-amble about turning off your camera’s flash though. Those annoying flashes don’t just diminish the experience for everyone, but the pictures won’t even come out! (except for the natural building, of course)
Here’s an idea I hereby anti-patent (release to public domain, assuming it’s not already patented). If the author of the below image is willing to let his art be used quasi-commercially, camera companies (esp. point-and-shoot) should make their cameras recognize this image and turn off the flash automatically. How’s that for idiot-proof?
(it might just need a little augmentation for the tag readers to more easily identify it).