Ngoc Thanh

QR codes have become an essential tool in today’s digital landscape. From product packaging and contactless menus to event check-ins and secure payments, QR codes make data access seamless. But what happens when you need to scan more than one QR code at once? Enter the Multiple QR Code Scanner — a powerful solution for environments that require fast and accurate decoding of multiple QR codes simultaneously. Multi QR Code Scanner is a application that can detect and decode two or more QR codes simultaneously from a single image or camera frame. Reading directions: from left to right and from top to bottom. Unlike traditional scanners that target one code at a time, these tools are built for bulk or batch scanning — identifying multiple codes in parallel, processing their content efficiently, and presenting the results with minimal delay. This technology is particularly useful in industrial, retail, logistics, and marketing sectors where efficiency and throughput are key. The scanner...

Extended Channel Interpretation (ECI) is a mechanism standardized in ISO/IEC 18004 (the QR Code specification) that allows data encoded in QR codes to include additional interpretation information. Normally, QR codes encode data using a default character set—typically ISO/IEC 8859-1 (Latin-1). This works well for English and some European languages but fails when dealing with characters from other writing systems like Chinese, Japanese, Arabic, or Cyrillic. ECI solves this by specifying which character set (code page) or data interpretation method should be used for parts of the encoded data. In short: Without ECI : QR data is interpreted using a single fixed character set. With ECI : You can mix and match character sets or even specify different types of binary encoding, all within one QR code. Why is ECI Important? 1. Multilingual Support QR codes are used globally. If your QR code links to a contact form in Japanese, includes a Chinese product description, or embeds a stri...