Very similar to an article I read a while back. They were using similar tech to recreate a persons thought, the images weren't great but you could clearly see what the person was thinking about. Like a painting that only reveals itself when you view it from a distance.
The Paper: http://www.eneuro.org/content/early/2018/01/29/ENEURO.0358-1...
U Toronto: https://www.utoronto.ca/news/new-technique-developed-u-t-use...