With the rapid popularization of qrcode technology, colourqrcode is an important direction of its development, making it of great value to research a colourqrcode that can be read directly while improving the dat...
详细信息
With the rapid popularization of qrcode technology, colourqrcode is an important direction of its development, making it of great value to research a colourqrcode that can be read directly while improving the data capacity. This letter proposes a novel composite colourqrcode by combining colour coding and multiplexing technology. Based on the actual demands of high-capacity, this code presents the public identification information in the form of the plain code and conceals the secret information (e.g., authentication information such as traceability, blockchain) as the hidden code. The reading conditions of colourqrcodes are discussed, a colour coding model is established and the corresponding algorithm to optimize its design is given. Through code scanning tests, it is verified that this kind of code has significant value in the field of anti-counterfeiting, commodity marketing etc.
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