Which sophisticated algorithm grants the QR code durability by maintaining integrity even if up to 30% of the data matrix is damaged?
Answer
Reed-Solomon error correction
A fundamental engineering requirement for the QR code's reliability on the production line was robust error correction, as labels frequently became scratched or smeared. This durability was achieved by incorporating Reed-Solomon error correction algorithms. This mechanism is powerful enough to allow the code to retain its integrity and remain readable even if a significant portion, specifically up to 30% of the data matrix, is obscured, dirty, or physically damaged. This inherent resilience was crucial for its initial industrial adoption.
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