Is it a printing error? A pixilated maze? One of those puzzles where you have to cross your eyes to see the hidden image? Two-dimensional matrix bar codes are expanding into the mainstream. You can ...

QR codes, those little black-and-white puzzle-like square matrixes that increasingly populate ads and promotional posters, are meant to provide smartphone users with product details. But trusting ...

QR codes, originally developed as two-dimensional matrix barcodes for rapid data acquisition, have undergone significant transformation and expansion in application. Their evolution from simple ...

QR code, short for Quick Response Code, is a kind of matrix barcode that includes information about a product or service. You can find it being used for advertising purposes, where brands put up ...

A QR code is a machine-readable matrix barcode and it stands for “quick response” code. You can use the camera app on any phone to scan a QR code. After being scanned, the QR code will send the user ...

“Consumers have more information about products and more products to choose from than ever before. They have more ways to shop… and they are bombarded with messages pitched through a growing number of ...