Декодирование

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Также известен как: decode reading

The process of extracting data from a QR code image: locating finder patterns, reading format/version information, removing the mask, deinterleaving codewords, performing Reed-Solomon error correction, and interpreting the data segments.

Связанные термины

Как работает сканирование QR Code: От камеры к данным

QR Code Fundamentals

…exceeds the correction capacity of the chosen EC level, decoding fails. Step 8: Data Extraction Finally, the corrected data…

Паттерны масок: Скрытая оптимизация в каждом QR Code

QR Code Fundamentals

…, or other structures that interfere with reliable decoding. Masking XORs the data modules with a mathematical pattern…

Finder Pattern: Почему у QR Codes три квадрата

QR Code Fundamentals

…Without them, a scanner could not locate, orient, or decode the symbol. The 1:1:3:1:1 Ratio Each finder pattern is a…

Коррекция ошибок Reed-Solomon в QR Codes

QR Code Fundamentals

…from large contiguous damage areas. The Decode Side When decoding, the scanner: Calculates syndromes — if all syndromes are…

Стандарты QR Code: ISO 18004 и не только

QR Code Fundamentals

…It specifies testing methodology for print quality : decode, symbol contrast, modulation, fixed pattern damage, and…

Коды Reed-Solomon: Математика коррекции ошибок в QR

Error Correction & Data Integrity

…of alpha Encoding divides data by the generator polynomial Decoding uses syndromes, Berlekamp-Massey, Chien search, and…

Коды BCH и Golay в информации о формате и версии

Error Correction & Data Integrity

…providing optimal protection for short binary sequences. Decoding Priority During the scanning process , the decoder reads…

Коррекция ошибок в Micro QR и rMQR

Error Correction & Data Integrity

…support Micro QR or rMQR error correction fully. Some may decode correctly at EC-L but fail to apply full error correction…