Method and apparatus for video watermarking using perceptual masks
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United States of America Patent
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Aug 28, 2001
Grant Date -
N/A
app pub date -
Aug 27, 1997
filing date -
Aug 30, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus for the watermarking of video data is disclosed. In one embodiment, discrete objects are extracted from the video host data. Each is assigned and embedded with a watermark. The watermark is embedded by generating the watermark, applying it to a perceptual mask of the block, spatially masking the resulting block, and re-adding the block to the result. The objects are collected into a database so that an object may be tracked as it is transformed from frame to frame of the video host data.
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