The Nested QR Code Source IEEE Signal Processing

The Nested QR Code Source: IEEE Signal Processing Letters, 2020. Authors: Kuo-Chien Chou and Ran-Zan Wang Speaker: Huang Peng-Cheng Date: 5/20/2021

Outline • Introduction • Proposed Scheme • Experimental results • Conclusions • Related Work • Comments

Introduction—motivation(1/2) “https: //www. yz u. edu. tw” “https: //www. youtub e. com/watch? v=9 i_U QC 4 znv. U”

Introduction—motivation(2/2)

Proposed scheme(1/3) --the flowchart of proposed scheme two input messages two QR codes composition evaluation module adjustment The nested QR code

Proposed scheme(2/3) --composition evaluation

Proposed scheme(3/3) --module adjustment

Experimental results(1/3)

Experimental results(2/3)

Experimental results(3/3) [11]I. Tkachenko, W. Puech, C. Destruel, O. Strauss, J. M. Gaudin, C. Guichard, “Two-Level QR Code for Private Message Sharing and Document Authentication, ” IEEE Trans. Inf. Forensics Secur. , Vol. 11, No. 3, pp. 571– 583, 2016. [12]P. Y. Lin, Y. H. Chen, “High payload secret hiding technology for QR codes, ” EURASIP J. Image Video Process. , pp. 1– 8, 2017. [13]S. Liu, Z. Fu, A. B. Yu, “Rich QR codes with three-layer information using hamming code, ” IEEE Access, Vol. 7. pp. 78640– 78651, 2019. [14] T. Yuan, Y. Wang, K. Xu, R. R. Martin, “Two-layer QR codes, ” IEEE Trans. Imag. Process. , Vol. 28, No. 9, pp. 4413– 4428, 2019.

Conclusions • each QR code containing a different message. • Both QR Code can be decoded by using standard QR code scanners.

Related work(1/5) J. Lu, Z. Yang, L. Li, W. Yuan, L. Li, and C. -C. Chang, "Multiple Schemes for Mobile Payment Authentication Using QR Code and Visual Cryptography, " Mobile Information Systems, vol. 2017, 2017.

Related Work(2/5) Scheme I Based on QR Module and XOR Mechanism of RS

Related work(3/5) Scheme II Based on VCS and Fusion Strategy of Background Image by XOR Mechanism of RS

Related work(4/5) Scheme II Based on VCS and Fusion Strategy of Background Image by XOR Mechanism of RS

Related work(5/5) Scheme III Based on VCS and Fusion Strategy of Background Image with Error Correction Mechanism of QR code

comments 1. Low capacity. 2. Low decoding rate, especially the inner QR code. 3. Low robustness. 4. Low practically.