Visible Light Communication using an HFR camera-projector system

摘要

We propose a novel method for streaming the real-time video transmission using projector-camera based Visual light communication (VLC) system. Our method uses a high frame rate (HFR) projector which can project an encoded color input video sequence into binary image patterns modulated at thousands of frames per second (fps), and an HFR vision system which can capture and decode these binary patterns into the input color video sequence with real-time video processing. In this system, we introduce a protocol for the projector-camera based VLC system, in which the HFR-projector is fed with the multi-level colored video sequence which is encoded using gray-code before transmission to avoid ambiguity caused by interference at the pixel boundaries.