When we first heard about the NavVis
system a couple of years ago, it was being developed for indoor navigation. Developed by researchers at the Technical University of Munich, it utilizes maps consisting of location-tagged photos of the hallways of buildings. In order to figure out where they are, users just take a photo of their surroundings using their smartphone, then the NavVis app matches that photo up with one in its map. Now, the technology has been expanded to the point that it could give Google Street View a run for its money.