Bar codes, QR codes, and invisible QR codes
QR codes have seen a massive development and adoption to solve slow input on a smartphone. The technology is closely related to fiducial marker augmented reality by encoding digital information in physical
Fiducial vision recognition toolkits
I have been following fiducial marker recognition toolkits since 2009 when I was an visiting researcher at Dr. Takeo Igarashi’s ERATO Lab in Tokyo, Japan. These marker recognition toolkits are