Greg in the comments makes a lovely observation:

"I keep thinking about whether these are equivalent to the Terminator HUDs that Slavin mocks (images.wikia.com/terminator/images/2/25/T-800a_Threat.jpg). Why would a computer communicate to itself with text? These visualizations are really for the human observer of the CV process. They're akin to Rodney Brooks's idea of language having been invented by god to make it easier to read our minds. In this case these graphics give a window on the extent to which the CV algorithms are seeing the world the way we want them to, whether their vision agrees with ours."

The above video seems mostly like robots and humans meeting in the middle (and off the top of my head that seems to feel like what Matt Jones originally baked into the notion of "Robot Readable World"). Sort of like whereas novice designers talk about "seamless design," Mark Weiser started talking in the late 80's about beautiful seams instead - the markings in the video above are those seams, and I'm guessing we'll make them beautiful soon enough.