Brilliance From Siggraph: Bokeh-Based Tiny Barcodes

“Bokeh” is a term used by photographers to praise the out-of-focus areas of a photograph. Researchers at MIT have figured out how to exploit bokeh so that they can read 3mm barcodes with 2.5 micron elements at a distance of 4 meters with an off-the-shelf camera! The “bokode” dot uses a lenslet to create lightrays […]