Abstract
Recently, we proposed a method for constructing a template for efficient temporal synchronization in video
watermarking.1 Our temporal synchronization method uses a state machine key generator for producing the
watermark embedded in successive frames of video. A feature extractor allows the watermark key schedule
to be content dependent, increasing the difficulty of copy and ownership attacks. It was shown that efficient
synchronization can be achieved by adding temporal redundancy into the key schedule.
In this paper, we explore and extend the concepts of our temporal synchronization method to spatial synchronization.
The key generator is used to construct the embedded watermark of non-overlapping blocks of the
video, creating a tiled structure.2
