MCode

mCode is a 2-D bar code symbology designed for mobile use. It consists of a matrix of squares that are either filled in or missing, similar to a printed rendition of a punched card. It is intended to be recognized by a mobile app without the camera being specifically aimed at the code, and tracked through moving images as a coded object moves around.

Links

 * Promotional hype
 * Paper describing system
 * mCode Mobility Symbology Is Making Moves