Modeling Differential Screen-Camera Data Transmission for Parallel Video Presentation

2018 IEEE Globecom Workshops (GC Wkshps) Pub Date : 2018-12-01 DOI:10.1109/GLOCOMW.2018.8644133

Christian Brauers, R. Kays, J. Klein, Jianshuang Xu

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引用次数: 5

Abstract

Optical data transmission from display to camera is a promising new communication concept, which could be a very good solution for wireless communication in different cases. It seems attractive for many conceivable scenarios to maintain the primary function of a screen – displaying a video playback – while transmitting data imperceptible for human viewers. In the DaViD (Data Transmission Using Video Devices) project, we are developing a high-rate data transmission scheme on said display-camera link. To find the optimum parameters for such a transmission, thorough knowledge of the optical channel is needed. In this paper, we introduce a model of our display-camera transmission system, focusing on the peculiarities of an optical free-space channel with display-to-camera projection. We analyze the impact of data overlay onto video content, the influence of non-optimal camera alignment and the need for display-camera synchronization. We employ this channel description in the model of our data transmission system, whose current demonstration setup achieves net data rates of over 10 Mbit/s.

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并行视频显示的差分屏摄像机数据传输建模

从显示器到相机的光数据传输是一种很有前途的通信新概念，它可以很好地解决不同情况下的无线通信问题。在许多可以想象的场景中，保持屏幕的主要功能——显示视频回放——同时传输人类观众无法察觉的数据，这似乎很有吸引力。在视频设备数据传输(DaViD)项目中，我们正在开发一种基于上述显示-摄像机链路的高速率数据传输方案。为了找到这种传输的最佳参数，需要彻底了解光通道。在本文中，我们介绍了我们的显示-摄像机传输系统的模型，重点讨论了具有显示-摄像机投影的光学自由空间信道的特点。我们分析了数据叠加对视频内容的影响、非最佳摄像机对准的影响以及显示摄像机同步的必要性。我们在我们的数据传输系统模型中采用了这种信道描述，其目前的演示设置实现了超过10mbit /s的净数据速率。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE Globecom Workshops (GC Wkshps)

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