发明名称 DIGITAL CINEMA ANTI-CAMCORDING METHOD AND APPARATUS BASED ON IMAGE FRAME POST-SAMPLING
摘要 <p>A method and apparatus for projecting digital video content and for discouraging recording of the projected video content using a video camera or other sampling recording device are described, including accepting a frame of digital video content, time-shifting a bit-plane of the frame of the digital video content at a phase difference, projecting the time-shifted frame, repeating the accepting, time-shifting and projecting acts for a number of frames, adjusting the phase difference and repeating all of the above acts. Also described are a method and apparatus for generating an indication of a mid-scale level bit-plane of a frame of digital video content, including accepting a frame of digital video content, accepting a selection of mid-scale level bit-plane of the frame and generating an indication of the selection of the mid-scale level bit-plane of the frame. Time-shifting bit-planes of a frame generates in the recorded video a flicker.</p>
申请公布号 EP2116047(A1) 申请公布日期 2009.11.11
申请号 EP20070733930 申请日期 2007.03.06
申请人 THOMSON LICENSING 发明人 TCHOUKALEYSKY, EMIL
分类号 H04N5/913 主分类号 H04N5/913
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