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Visible light communication systems using blue color difference modulation for digital signage

机译:使用蓝色差分调制的数字标牌的可见光通信系统

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Digital signage, which is advertising media using a liquid crystal display (LCD), is increasing in popularity. One possible application is wireless communications between digital signage and viewers. We focus on image-sensor-based visible light communication (VLC). Image-sensor-based VLC requires only an image sensor (IS), which is common equipment in smart phones. In the proposed method, an information signal is displayed on LCD. However, embedding the information signal into an advertisement may decrease the quality. We propose blue color difference modulation to make such signals imperceptible. We implemented a VLC system between digital signage and IS to demonstrate, the effectiveness of the proposed modulation in a real environment.
机译:作为使用液晶显示器(LCD)的广告媒体的数字标牌越来越受欢迎。一种可能的应用是数字标牌和观众之间的无线通信。我们专注于基于图像传感器的可见光通信(VLC)。基于图像传感器的VLC仅需要图像传感器(IS),这是智能手机中的常见设备。在所提出的方法中,在LCD上显示信息信号。但是,将信息信号嵌入广告中可能会降低质量。我们提出了蓝色色差调制,以使这种信号难以察觉。我们在数字标牌和IS之间实施了VLC系统,以演示在实际环境中提出的调制的有效性。

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