Rain Bar: Robust Application-Driven Visual Communication Using Color Barcodes
Rain Bar: Robust Application-Driven Visual Communication Using Color Barcodes
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DOI：
10.1109/icdcs.2015.61
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
Qian Wang;Man Zhou;K. Ren;Tao Lei;Jikun Li;Zhibo Wang
中科院分区：
文献类型：
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作者：
Qian Wang;Man Zhou;K. Ren;Tao Lei;Jikun Li;Zhibo Wang
基于彩色条形码的可见光通信（VLC）由于其免费、无干扰、不需要复杂的网络结构和良好控制的通信安全性等优点，近年来引起了广泛的研究兴趣。为了实现高通量条形码流，以前的系统分别解决了图像模糊、不完美帧同步和纠错等设计挑战，而没有作为一个相互关联的整体进行研究。这并没有充分利用彩色条码流的容量，从实用的角度来看，这些解决方案都有各自的局限性。本文提出了一种新的改进的彩色条形码视觉通信系统RainBar，该系统具有精心设计的高容量条形码布局设计，可以实现灵活的帧同步和准确的代码提取。提出了一种渐进式码位检测和定位方案以及一种鲁棒的颜色识别方案，以提高系统的鲁棒性，从而提高各种工况下的译码率。通过广泛的实验研究，证明了RainBar的有效性和灵活性。在Android智能手机上的结果表明，在各种工作环境下，我们的系统比以前的系统实现了更高的平均吞吐量。
Color barcode-based visible light communication (VLC) over screen-camera links has attracted great research interest in recent years due to its many desirable properties, including free of charge, free of interference, free of complex network configuration and well-controlled communication security. To achieve high-throughput barcode streaming, previous systems separately address design challenges such as image blur, imperfect frame synchronization and error correction etc., without being investigated as an interrelated whole. This does not fully exploit the capacity of color barcode streaming, and these solutions all have their own limitations from a practical perspective. This paper proposes RainBar, a new and improved color barcode-based visual communication system, which features a carefully-designed high-capacity barcode layout design to allow flexible frame synchronization and accurate code extraction. A progressive code locator detection and localization scheme and a robust color recognition scheme are proposed to enhance system robustness and hence the decoding rate under various working conditions. An extensive experimental study is presented to demonstrate the effectiveness and flexibility of RainBar. Results on Android smartphones show that our system achieves higher average throughput than previous systems, under various working environments.