Development of countermeasure systems for content leaks by video recording/camera shooting

The authors have been engaged in the study of countermeasures to prevent the leak of onscreen content (images and movies) using a digital video camera. One of the studies is the development of a transparent sheet that emits infrared (IR) light, which is applied to the screen and generates optical noise in the onscreen photographic images when recorded. Another study is the development of a method to detect video recording/camera shooting near the display as a countermeasure to prevent video recording using the IR-cut filter. This report is prepared as an advance report because it was confirmed that the feasibility of such countermeasures is enhanced.