Artist Leon Keer has worked on a large number of 3D street paintings in the last couple of years at events around the world. Because these street paintings have to be viewed from an exact vantage point, Keer is looking for ways to create a bigger visual impact for the spectators and add information.
On Lost At E Minor, he writes that his solution is augmented reality with new object recognition technologies. This adds a new dimension to the 3D-painting medium, making street art interactive so viewers can use their mobile devices to see virtual objects and additional information overlayed.
When they scan the street painting through their device's camera, they can see images and text on the screen that can’t be identified by visual perception alone. You can check out the "4D street art" in Keer’s video above.