You Can See, But You Cannot Photograph: An Intelligent Content Protection Scheme for Videos on Screens

Nowadays, with the development of digital image, video, and other multimedia visualization techniques, electronic screens are ubiquitous in various scenarios, and these screens provide vivid communication and presentation methods. Unfortunately, at the same time, the security and safety defenders have noticed that it is more and more difficult to prevent people from photographing the contents on the screens, especially when the photographic equipment is undergoing miniaturization and intelligentization, and that promotes the information and privacy leakage inevitably. There are plenty of technical solutions that have been proposed previously, but few of the exiting schemes are feasible for daily and widespread applications because most of them require some additional and customized hardware to be mounted on the screens or audiences. Therefore, in this paper, we propose an intelligent content protection scheme for videos on screens, which is designed to prevent audiences from photographing the entire picture of the screen while having no observable influence for direct observation with naked eyes. Furthermore, our experiments demonstrate that, for the 1080P and 60 fps videos on ordinary LCD screens, our scheme outperforms the existing schemes in terms of occlusion rate, effective distance and so on.