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arXiv · 2501.02349

Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding

Abbaas Alif Mohamed Nishar·Shrinivas Kudekar·Bernard Kintzing·Ashwin Ashok
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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.

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Abbaas Alif Mohamed Nishar, Shrinivas Kudekar, Bernard Kintzing, Ashwin Ashok. 2025-01-04. Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding. https://arxiv.org/abs/2501.02349

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