Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding
Journal:
arXiv
Published Date:
Jan 4, 2025
Abstract
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.
