Volume 32 Issue 3
May  2023
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Article Contents
HUANG Yuan, CAO Peng, LYU Guangwu, “A Directly Readable Halftone Multifunctional Color QR Code,” Chinese Journal of Electronics, vol. 32, no. 3, pp. 474-484, 2023, doi: 10.23919/cje.2021.00.366
Citation: HUANG Yuan, CAO Peng, LYU Guangwu, “A Directly Readable Halftone Multifunctional Color QR Code,” Chinese Journal of Electronics, vol. 32, no. 3, pp. 474-484, 2023, doi: 10.23919/cje.2021.00.366

A Directly Readable Halftone Multifunctional Color QR Code

doi: 10.23919/cje.2021.00.366
Funds:  This work was supported by Beijing Fund-Municipal Education Commission Joint Project (KZ202010015023) and the National Natural Science Foundation of China (61972042).
More Information
  • Author Bio:

    Yuan HUANG was born in Jiangxi Province, China, in 1997. She received the B.E. degree in electronic and information engineering from Beijing Institute of Graphic Communication in 2020. She is now an M.S. candidate of Beijing Institute of Graphic Communication. Her research interests include printing image processing, anti-counterfeiting traceability, and information modulation and demodulation technology. (Email: yuanhuang971209@163.com)

    Peng CAO (corresponding author) was born in 1969. He graduated from the Department of Electronic Technology of Ningxia University in 1992, obtained the M.S. degree from Xi’an Jiaotong University in 2001, and the Ph.D. degree in electromagnetic fields and microwave technology from Beijing Institute of Technology in 2005. He is now a Professor of Beijing Institute of Graphic Communication. His research interests include halftone information hiding and printing anti-counterfeiting, graphics research on techniques of text information detection and automatic recognition. (Email: pc@bigc.edu.cn)

    Guangwu LYU was born in Guizhou Province, China, in 1995. He received the B.E. degree in electronic and information engineering from Guangdong Ocean University in 2019. He received the M.S. degree in information and communication engineering from Beijing Institute of Graphic Communication in 2022. His research interests include digital image processing, printing information hiding and security, and high-precision color conversion. (Email: guangwulv@163.com)

  • Received Date: 2021-10-14
  • Accepted Date: 2022-07-02
  • Available Online: 2022-07-28
  • Publish Date: 2023-05-05
  • Color quick response (QR) code is an important direction for the future development of QR code, which has become a research hotspot due to the additional functional characteristics of its colors as the wide application of QR code technology. The existing color QR code has solved the problem of information storage capacity, but it requires an enormous hardware and software support system, making how to achieve its direct readability an urgent issue. This paper proposes a novel color QR code that combines multiple types of different identification information. This code combines multiplexing and color-coding technology to present the publicly encoded information (such as advertisements, public query information) as plain code, and traceability, blockchain, anti-counterfeiting authentication and other information concealed in the form of hidden code. We elaborate the basic principle of this code, construct its mathematical model and supply a set of algorithm design processes, which breakthrough key technology of halftone printout. The experimental results show that the proposed color quick response code realizes the multi-code integration and can be read directly without special scanning equipment, which has unique advantages in the field of printing anti-counterfeiting labels.
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