发明名称 Anti-piracy image display methods and systems with sub-frame intensity compensation
摘要 Image display methods and systems are provided wherein only portions of a still image of a motion picture, generated for display during an image time interval, are displayed during respective sub-intervals of the image time interval. A still image is thereby separated into portions and displayed separately during corresponding sub-intervals. Preferably, no single portion of the image includes all of the content of the entire image. However, the sum of all of the portions preferably includes all of the content of the image, and all of the portions are displayed within the image time interval. Although an image displayed in this manner can be correctly perceived by a viewer, recording of such an image may capture fewer than all of the portions of the image to thereby degrade the quality of recorded copies of the image and thus the motion picture. Intensity compensation is performed such that a consistent brightness is perceived by a user notwithstanding the fact that some portions are displayed for less time.
申请公布号 US7693330(B2) 申请公布日期 2010.04.06
申请号 US20050248420 申请日期 2005.10.13
申请人 SO VINCENT 发明人 SO VINCENT
分类号 G06K9/00;G06K9/34;G06K9/40;G06K9/76;H04N7/167 主分类号 G06K9/00
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