Abstract
We present a new video projection technique to defeat camcorder piracy
in movie theaters using the newly emerged display paradigm of temporal psychovisual
modulation. The technique exploits the difference in image formation mechanisms
between human eyes and digital cameras: in the human visual system, images
are formed via continuous integration of the light field, whereas digital
video acquisition is based on discrete sampling of light sensors. A movie
frame is decomposed into multiple so-called shale frames such that, when these
shale frames are displayed at a frame rate higher than 60 Hz, the human viewers
will experience normal movie presentation without any noticeable artifacts,
but the video frames captured by camcorders will contain severe, highly objectionable
artifacts, depriving the pirated video contents of any commercial values.
© 2014 IEEE
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