| 摘要 |
Subsets of a video image (101) are analyzed to determine whether unauthorized playback-protected image is contained within the subsets. Regions of subsequent video images are prevented (210) from being displayed based upon whether the unauthorized playback-protected image is contained within the subsets. When a watermark is detected (220) within a video image, select areas (240) of the video image are included or excluded from subsequent watermark detection operations. When the inclusion/exclusion of an area results affects the ability to detect the watermark (260), a region that includes/excludes the area is identified (270) as a region that should not be displayed (210). The detection of other areas that affect the watermark detection results causes a redefinition (270) of the region to include/exclude the other areas. ® KIPO & WIPO 2007
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