Frame loss detecting for unobtrusive display camera visible light communication

The prevalence of camera-equipped smartphones and optoelectronic displays opens up a novel framework for wireless communication-optical camera communication. With displays as transmitters and cameras as receivers, a reliable optical communication link is established. In practice, the frame synchronization between transmitters and receivers is an inevitable challenge confronted in this new communication mode, whereas few previous studies are involved in this issue. Thus, we dedicate to model the frame synchronization issue, discuss the phenomenon that the receiver might lose frames or capture mixed frames, and propose frame loss detecting algorithm based on statistic characteristics of difference frames, while maintaining perceptual transparency. Our preliminary experiments have confirmed the validity of the theoretical analysis and the proposed algorithms.