Halftone QR Codes (Siggraph Asia 2013)

http://bit.do/dg8Yq BarcodeResource hidden discount page.
More details + link to online generator at: http://vecg.cs.ucl.ac.uk/Projects/SmartGeometry/halftone_QR/halftoneQR_sigga13.html Online generator at (the site can be flaky): http://140.114.79.127:90/halftoneQRC.aspx