Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866913636424876032 |
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| author | Nishar, Abbaas Alif Mohamed Kudekar, Shrinivas Kintzing, Bernard Ashok, Ashwin |
| author_facet | Nishar, Abbaas Alif Mohamed Kudekar, Shrinivas Kintzing, Bernard Ashok, Ashwin |
| contents | 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2501_02349 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding Nishar, Abbaas Alif Mohamed Kudekar, Shrinivas Kintzing, Bernard Ashok, Ashwin Multimedia Cryptography and Security Computer Vision and Pattern Recognition Information Theory Networking and Internet Architecture 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. |
| title | Revelio: A Real-World Screen-Camera Communication System with Visually Imperceptible Data Embedding |
| topic | Multimedia Cryptography and Security Computer Vision and Pattern Recognition Information Theory Networking and Internet Architecture |
| url | https://arxiv.org/abs/2501.02349 |