IVC: Imperceptible Video Communication
IVC: Imperceptible Video Communication
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发表时间：
2014-02
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通讯作者：
Roberto Carvalho;Ching-Hsiang Chu;Ling-Jyh Chen
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作者：
Roberto Carvalho;Ching-Hsiang Chu;Ling-Jyh Chen
可见光通信（VLC）最近受到了极大的关注，因为它有助于在具有高用户密度的场景中进行数据通信，其中传统的有线和无线技术由于用户移动性和信道竞争而不能很好地工作。然而，现有的VLC技术需要专门的硬件来进行通信，因此它们被认为对于最终用户是不切实际的。考虑到当今环境中大量的相机和LCD屏幕，使用这些设备进行无线通信是有意义的。具体来说，摄像头可以用于拍摄附近的LCD屏幕，并将其用于网络访问。一些作品为视频通道通信提供了可行的解决方案，但他们的作品没有克服至少一个挑战：低数据吞吐量，依赖额外的基础设施（Digimarc技术[1]）和不可读的视频（PixNet [2]或COBRA [3]）。本演示探索了这种新颖的通信媒介，并介绍了不可感知的视频通信（IVC）。该系统利用了现成的摄像头和LCD显示器，并在正常视频上传输无法感知的数据，而无需依赖额外的基础设施。
Visible light communication (VLC) has received significant attention recently because it facilitates data communication in scenarios with high user density, where conventional wired and wireless technologies cannot work well due to user mobility and channel contention. However, the existing VLC techniques require specialized hardware for communication to take place, and therefore they are considered impractical for end users yet. Given the abundance of cameras and LCD screens in today’s environment, it makes sense the use of these devices for wireless communication. Specifically, cameras can be used for shooting nearby LCD screens and use them for network access. A couple of works provided feasible solutions to video channel communication, however their works did not overcome at least one of the challenges: low data throughput, reliance on additional infrastructure (Digimarc Technology [1]) and unreadable video (PixNet [2] or COBRA [3]). This demo explores this novel communication medium and presents Imperceptible Video Communication (IVC). A system that takes advantage of both off-the-shelf cameras and LCD displays, and it transfers imperceptible data over a normal video and without the reliance on additional infrastructure.