Research on Dual Anti Duplication and Anti-counterfeiting Technology of QR Code Based on Metamerism Characteristics

2020 IEEE 5th International Conference on Image, Vision and Computing (ICIVC) Pub Date : 2020-07-01 DOI:10.1109/ICIVC50857.2020.9177432

Chen Fangfang, Cao Peng

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Abstract

Ordinary QR code does not have the function of anti duplication, and it is easy to be copied and counterfeited. In order to overcome this loophole, an anti-counterfeiting method using CMYK color printing metamerism characteristics + embedded pseudo-random noise is adopted to generate a QR code with dual anti duplication and anti-counterfeiting (secure QR code for short). Firstly, the anti-counterfeiting information is encoded and embedded into the ordinary QR code in the form of noise to generate the first-level anti-copying and anti-counterfeiting QR code with information. Then the CMYK color ratio is modulated with the second-level anti-counterfeiting information to satisfy the metamerism characteristic, and the second-level anti-counterfeiting is realized. Experimental tests show that the secure QR code designed in this paper has good information hiding performance, anti-replication performance and multi-code integration function, and can be used in anti-counterfeiting of trademarks, books, labels, etc.

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基于同色特征的二维码双防复制防伪技术研究

普通QR码不具备防复制功能，容易被复制和伪造。为了克服这一漏洞，采用利用CMYK彩色印刷同体特征+嵌入伪随机噪声的防伪方法，生成具有双重防复制和防伪功能的二维码(简称安全二维码)。首先，将防伪信息以噪声的形式编码嵌入到普通QR码中，生成带有信息的一级防伪防伪QR码。然后利用二级防伪信息对CMYK色比进行调制，以满足同色特性，实现二级防伪。实验测试表明，本文设计的安全QR码具有良好的信息隐藏性能、防复制性能和多码集成功能，可用于商标、图书、标签等防伪。

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2020 IEEE 5th International Conference on Image, Vision and Computing (ICIVC)

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