Основы QR-кодов
Core concepts every QR code user should understand — from basic structure and versions to encoding modes, error correction, and how scanners decode symbols.
Что такое QR Code? Полное введение
The definitive beginner guide to QR codes — history, structure, how they work, and why they matter in 2026.
Анатомия QR Code: Объяснение каждого компонента
Detailed breakdown of QR code components: finder patterns, timing patterns, alignment markers, data regions, and format information.
QR Code версии 1-40: Размер, ёмкость и выбор
Complete reference for all 40 QR code versions — module counts, data capacity per EC level, and how to choose …
Режимы кодирования: числовой, буквенно-цифровой, байтовый, кандзи и ECI
How QR codes encode data: five modes with different character sets and efficiency. When to use each mode and mixed-mode …
Уровни коррекции ошибок L, M, Q, H: как выбрать
Understanding error correction levels and their trade-offs. When to use L (7%), M (15%), Q (25%), or H (30%) recovery.
Как работает сканирование QR Code: От камеры к данным
The complete decoding pipeline: image capture, binarisation, finder detection, format reading, unmasking, error correction, and data extraction.
Статические и динамические QR Codes: Плюсы, минусы и когда использовать
Compare static and dynamic QR codes: functionality, cost, analytics, flexibility, and which type fits your needs.
Объем данных QR Code: Максимум символов по версии и режиму
Complete capacity tables for all 40 versions across all EC levels and encoding modes. How to calculate the required version …
QR Code vs штрихкод: Почему победил 2D
How QR codes surpassed traditional 1D barcodes: capacity, speed, error correction, and versatility comparison.
Паттерны масок: Скрытая оптимизация в каждом QR Code
The eight mask patterns, penalty scoring, and how the encoder selects the optimal mask for readability.
Finder Pattern: Почему у QR Codes три квадрата
The 1:1:3:1:1 ratio, detection algorithm, and why three squares in specific corners enable instant orientation from any angle.
Коррекция ошибок Reed-Solomon в QR Codes
How Reed-Solomon codes work in QR codes: Galois field arithmetic, generator polynomials, and codeword interleaving.
Micro QR и rMQR: Компактные альтернативы стандартному QR
When standard QR codes are too large: Micro QR (M1-M4) and Rectangular Micro QR (rMQR) variants for space-constrained applications.
Стандарты QR Code: ISO 18004 и не только
International standards governing QR codes: ISO/IEC 18004, JIS X 0510, GS1 Digital Link, EMV QR, and industry-specific specs.
История QR Codes: От Toyota до мирового стандарта
QR code history from 1994 invention at DENSO WAVE through ISO standardisation, smartphone adoption, and COVID-era boom.