First test of a QR-code driven paper georeferencing system. See this page for infomation on decoding the georeferencing. The layer "Scanned Map" is a scan of a printout produced by the link below. The paper map was then scanned and then semi-automatically georeferenced. Because of all the positioning is being provided by the single QR code, any errors in scale and rotation are magnified when extended out to the full image extents. See here for a more recent experiment using two QR codes for more accurate postioning.