The MIT Camera Culture Group utilized Bokeh, an effect where the lens is purposely placed out of focus, in order to vastly improve current 2D barcode technology. Dubbed Bokode, the team claims that an off the shelf camera can read data 2.5 microns from a distance of over 4 meters, compared to today’s average barcode reader’s maximum distance of only a foot or so. What looks most interesting is the ability to produce a smoother and more accurate distance and angle calculations (relative to the camera): allowing for a better augmented reality. It also seems to be more secure than traditional 2D barcodes, that is of course until the hacker community gets a hold of it.

[Thanks Talin]