Made with the freeware application Mosaizer Pro. Never seen this before, except as highly professional video shots made by experts. This took me just about 10 mins to create, fully automated. Footage is taken from a part of a Pixar movie ('For the birds'). Some extreme zoom-in was made to show that the tile size can dynamically be enlarged as well, as panning. Here the software can be downloaded: http://www.mosaizer.com.