Abstract
In this letter, we discuss an essential part of screen-camera communication, the orientation of the received image, and report reliability problems due to the angle and distance. According to our analyses, communication range could be broadened if an image is proactively manipulated before being displayed according to the locations of both a screen and a camera. By implementing a simple application, we prove that the proposed scheme outperforms the existing ones in terms of throughput, reliability and coverage.
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