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 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 ...

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 ...

Position markers, also known as finder patterns, are the large squares located at three corners of the QR Code. These markers help scanners detect the QR Code and determine its orientation. They are ...