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HiLight: Hiding Bits in Pixel Translucency Changes

Published: 13 January 2015 Publication History

Abstract

We present HiLight, a new form of unobtrusive screen-camera communication for off-theshelf smart devices. HiLight hides information underlying any images shown on an LED or OLED screen, and camera-equipped smart devices can fetch the information by turning their cameras to the screen. HiLight achieves this by leveraging the transparency (alpha) channel, a well-known concept in computer graphics, to encode bits into pixel translucency changes without modifying pixel color (RGB) values. We demonstrated HiLight's feasibility using smartphones. By offering an unobtrusive, flexible, and lightweight communication channel between screens and cameras, HiLight allows new HCI and context-aware applications to emerge.

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  • (2022)DeepCCB-OCC: Deep Learning-Driven Complementary Color Barcode-Based Optical Camera CommunicationsApplied Sciences10.3390/app12211123912:21(11239)Online publication date: 6-Nov-2022
  • (2022)A reliable and unobtrusive approach to display area detection for imperceptible display camera communicationJournal of Visual Communication and Image Representation10.1016/j.jvcir.2022.10351085:COnline publication date: 1-May-2022
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Published In

cover image ACM SIGMOBILE Mobile Computing and Communications Review
ACM SIGMOBILE Mobile Computing and Communications Review  Volume 18, Issue 3
July 2014
89 pages
ISSN:1559-1662
EISSN:1931-1222
DOI:10.1145/2721896
Issue’s Table of Contents

Publisher

Association for Computing Machinery

New York, NY, United States

Publication History

Published: 13 January 2015
Published in SIGMOBILE Volume 18, Issue 3

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Cited By

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  • (2023)Dense D2C-Net: dense connection network for display-to-camera communicationsOptics Express10.1364/OE.49806731:19(31005)Online publication date: 6-Sep-2023
  • (2022)DeepCCB-OCC: Deep Learning-Driven Complementary Color Barcode-Based Optical Camera CommunicationsApplied Sciences10.3390/app12211123912:21(11239)Online publication date: 6-Nov-2022
  • (2022)A reliable and unobtrusive approach to display area detection for imperceptible display camera communicationJournal of Visual Communication and Image Representation10.1016/j.jvcir.2022.10351085:COnline publication date: 1-May-2022
  • (2021)Deep D2C-Net: deep learning-based display-to-camera communicationsOptics Express10.1364/OE.42259129:8(11494)Online publication date: 29-Mar-2021
  • (2021)Spatial Frequency Modulation for Display-Camera Communication2021 International Conference on Electronics, Information, and Communication (ICEIC)10.1109/ICEIC51217.2021.9369764(1-5)Online publication date: 31-Jan-2021
  • (2020)BitLightProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/34322284:4(1-23)Online publication date: 18-Dec-2020
  • (2020)Some practical constraints and solutions for optical camera communicationPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences10.1098/rsta.2019.0191378:2169(20190191)Online publication date: 2-Mar-2020
  • (2020)Mobile Light Storage: Make the Light SmarterProcedia Computer Science10.1016/j.procs.2020.07.009175(36-45)Online publication date: 2020
  • (2019)Robust and Unobtrusive Display-to-Camera Communications via Blue Channel EmbeddingIEEE Transactions on Image Processing10.1109/TIP.2018.286568128:1(156-169)Online publication date: 1-Jan-2019
  • (2018)Screen-Camera Communication via Matrix Barcode Utilizing Imperceptible Color VibrationAdjunct Proceedings of the 31st Annual ACM Symposium on User Interface Software and Technology10.1145/3266037.3271638(166-168)Online publication date: 11-Oct-2018
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