Robust and Imperceptible Commercial Camera-Screen Communication with 60Hz Refresh Rate
Han Zhang, Xutao Yu, Zaichen Zhang, Bingcheng Zhu
Abstract
In this paper, we propose an innovative camera-screen communication system designed for real-time communication between 60Hz commercial screens and smartphone cameras. Firstly, we employ Color Modulation to encode information into a video, achieving flicker-free transmission imperceptible to human eyes. Subsequently, we utilize a consecutive characteristics of this modulation method and employ the Random Sample Consensus algorithm for the detection of Regions of Interest without screen detection.In addition, we apply least-squares method to detect the refresh stripe imposed on image samples, which is a severe interference in camera-screen communications. Finally, inter-frame differencing is used for decoding. Our experimental results highlight the robustness and utility of the proposed system, even in complex environments. Specifically, the system achieves up to 80% accuracy at a range of 3 meters.
BibTeX
@inproceedings{icassp2024_robustandimperce,
title = {Robust and Imperceptible Commercial Camera-Screen Communication with 60Hz Refresh Rate},
author = {Han Zhang and Xutao Yu and Zaichen Zhang and Bingcheng Zhu},
booktitle = {ICASSP 2024},
year = {2024}
}