The ubiquitous QR ("quick response") codes that appear on everything from parking pay stations to soda cans and promotional ...
A QR code (short for "quick-response code") is a type of two-dimensional matrix barcode that can be read by the camera on a smartphone. They store information that can direct the user to a URL, ...
Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR ...
If you're vigilant, you can find QR codes everywhere. These black-and-white squares tie the real world to the internet, and scanning them gives you quick access to ID cards, restaurant menus ...
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