Research on printing quantum dot anti-counterfeiting image generation and recognition technology

This paper presents a method of information hiding and recognition based on the reliability codec of printed quantum dots, which is mainly used to solve the problem of authentication and information increment of anti-counterfeiting printing. This method uses multiple detection error-correcting coding method to generate the primitive lattice pattern of printed quantum dots, which figs out the issue of error in lattice pattern data caused by the printing output and the information recognition process. At the same time, in order to meet the requirement of scale matching of printed quantum dot dot matrix pattern mask, it is necessary to make multiple stitching for the primitive lattice pattern of printed quantum dots. In the stitching process, each primitive lattice information is interleaved with pseudo random iterative number, which resolves the trouble of information security vulnerabilities caused by the relative rules of the printed quantum dot dot matrix pattern, and achieves better information anti-counterfeiting and hidden effect. The technique settles the defects of the existing anti-counterfeiting printing in the aspects of anti duplication and damage resistance, and can be widely used in the anti-counterfeiting of cigarette label, wine label, negotiable securities and certificate.