The same trick was used in the recent Mission Impossible movie. The device, which was controlled by an iPad (ha!), used eye tracking to adjust the image to look

The same trick was used in the recent Mission Impossible movie. The device, which was controlled by an iPad (ha!), used eye tracking to adjust the image to look correct from the guards pov. And of course it failed when another person entered the room. I thought it was quite well done (though the real-time adjustment aspect seems very unlikely) but I wonder if what was happening was lost on most of the audience. I was already familiar with the concept, I remember reading about invisibility cloak prototypes[1] in the early 2000s. 1: http://www.wired.com/science/discoveries/news/2003/03/58286 http://www.wired.com/science/discoveries/news/2003/03/58286