Alex Kapranoff » from archive
In Seoul, retailer uses 3D QR codes and the sun to deliver discounts only during its quiet times | Springwise - http://www.springwise.com/retail/seoul-retailer-3d-qr-codes-s...
QR-код, который читается только при определённом освещении. ‎- Alex Kapranoff
Офигенно! ‎- bessarabov