Robust and fast decoding of high-capacity color QR codes for mobile applications

Z Yang, H Xu, J Deng, CC Loy… - IEEE Transactions on …, 2018‏ - ieeexplore.ieee.org
The use of color in QR codes brings extra data capacity, but also inflicts tremendous
challenges on the decoding process due to chromatic distortion—cross-channel color …

When vlc meets under-screen camera

H Ye, J **ong, Q Wang - Proceedings of the 21st Annual International …, 2023‏ - dl.acm.org
While radio communication still dominates in 5G, light and radios are expected to
complement each other in the coming 6G networks. Visible Light Communication (VLC) is …

Enabling online robust barcode-based visible light communication with realtime feedback

M Zhou, Q Wang, T Lei, Z Wang… - IEEE Transactions on …, 2018‏ - ieeexplore.ieee.org
Barcode-based visible light communication (VLC) over screen-camera links has attracted
great research interest recently due to its many desirable properties, including being free of …

MobiScan: An enhanced invisible screen‐camera communication system for IoT applications

X Zhang, J Liu, Z Ba, Y Tao… - Transactions on Emerging …, 2022‏ - Wiley Online Library
In recent years, dynamic and invisible screen‐camera short‐range communication for IoT
devices have become a popular research field due to its superior user experience and no …

Invisible QR code hijacking using smart LED

A Zhou, G Su, S Zhu, HD Ma - Proceedings of the ACM on Interactive …, 2019‏ - dl.acm.org
Quick response (QR) codes have found versatile usage in numerous applications, but have
also posed severe security threats such as privacy leakage, phishing and even payment …

Erscc: Enable efficient and reliable screen-camera communication

O Zhang, Z Qian, Y Mao, K Srinivasan… - Proceedings of the …, 2019‏ - dl.acm.org
Each camera on digital devices is made of hundreds of thousands of sensors, with which it
can separate and capture the light from spatial points in a fine-grain manner, enabling high …

Card-stunt as a service: Empowering a massively packed crowd for instant collective expressiveness

C Yoo, I Hwang, S Kang, MC Kim, S Kim… - Proceedings of the 15th …, 2017‏ - dl.acm.org
Imagine a densely packed crowd that gathers to convey a common message, such as
people in a candlelight vigil or a protest. We envision an innovation through mobile …

Megalight: Learning-based color adaptation for barcode stream recognition over screen-camera links

T Zhan, W Li, X Chen, S Lu - Proceedings of the ACM on Interactive …, 2019‏ - dl.acm.org
Screen-camera communication using dynamic barcode streaming has emerged as a
convenient and secure method for short-range, impromptu device-to-device communication …

QfaR: Location-Guided Scanning of Visual Codes from Long Distances

S Ma, J Wang, W Chen, S Banerjee, M Gupta… - Proceedings of the 29th …, 2023‏ - dl.acm.org
Visual codes such as QR codes provide a low-cost and convenient communication channel
between physical objects and mobile devices, but typically operate when the code and the …

Channel-wise barcodes for color display applications

K Dinesh, J Lu, S Dhoro… - Journal of Electronic …, 2019‏ - spiedigitallibrary.org
We present a channel-wise (CW) framework for data embedding in display images using
barcodes. Data are embedded in one or more channels of the color image encoded as a …