So, Shaper has a new product and it's a plastic computer vision marker frame to digitalize hand-drawn lines with a photo in a web app:

https://www.kickstarter.com/projects/shaper/shaper-trace-go-from-sketch-to-vector-in-seconds

The marker pattern looks very much like Pi-Tag by Bergamasco et al. but I guess they don't rely need all the fancy tricks of that paper.

I generally very much like what they do (and they are one of the few succcessful companies that emerged from the field of human-computer interaction). But the pricing is a bit weird on this one.