We present `Revelio', a real-world screen-camera communication system leveraging temporal flicker fusion in the OKLAB color space. Using spatially-adaptive flickering and encoding information in pixel region shapes, Revelio achieves visually imperceptible data embedding while remaining robust against noise, asynchronicity, and distortions in screen-camera channels, ensuring reliable decoding by standard smartphone cameras. The decoder, driven by a two-stage neural network, uses a weighted differential accumulator for precise frame detection and symbol recognition. Initial experiments demonstrate Revelio's effectiveness in interactive television, offering an unobtrusive method for meta-information transmission.
Cite
@article{arxiv.2501.02349,
title = {Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding},
author = {Abbaas Alif Mohamed Nishar and Shrinivas Kudekar and Bernard Kintzing and Ashwin Ashok},
journal= {arXiv preprint arXiv:2501.02349},
year = {2025}
}
Comments
6 pages, 6 Figures, 1 Table, Accepted at IEEE International Conference on Acoustic, Speech, and Signal Processing 2025