Quantum anti-counterfeiting two-dimensional code generation method and scanning method

The invention discloses a quantum anti-counterfeiting two-dimensional code generation method and a scanning method. The method comprises the following steps: forming an initial two-dimensional code image by using a quantum random number seed and product information XOR; taking the digital image of t...

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Bibliographic Details
Main Authors ZHU MINBO, WANG YAN, LI DAWEI
Format Patent
LanguageChinese
English
Published 03.07.2020
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
HANDLING RECORD CARRIERS
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
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Summary:The invention discloses a quantum anti-counterfeiting two-dimensional code generation method and a scanning method. The method comprises the following steps: forming an initial two-dimensional code image by using a quantum random number seed and product information XOR; taking the digital image of the quantum random number seed as a digital watermark image; pre-compensating the digital watermark image; and superposing the initial two-dimensional code image and the pre-compensated digital watermark image through DCT transformation and singular value decomposition to form a product two-dimensional code. Block DCT and singular value decomposition are carried out on a scanned image during scanning, the scanned image is compared with pre-compensated digital watermark information stored in a database, inverse singular value transformation and inverse DCT transformation are carried out, and a pre-compensated digital watermark image is obtained; comparing numbers in the watermark image with quantum random number seed
Bibliography:Application Number: CN202010141329