Digital Video Watermarking Software products

   Still image watermarking Video watermarking
Spread Spectrum (spatial domain and transform domain) X X
Motion Vector Modifications - X
Fractal Image Coding X X
Transform coefficient relationship (e.g. DCT) X X
Quantization Index Modulation X X
2D-Subband Spread Spectrum X X
3D-Subband Spread Spectrum - X
 
 
 
 
The following diagram shows the evaluation procedure we employ to test the robustness of video watermarking solutions against compression. Each frame of the video is first watermarked using a 64 bit signature. The resulting signed frames are then compressed using an MPEG-2 encoder at different bitrates.
 

One of the primary requirements of video watermarking schemes is their robustness to unintentional attacks while avoiding the introduction of disturbing artifacts. The most important unintentional attack on video is "lossy" compression. In the production chain, compression is usually applied before broadcasting or before transferring the video to other devices.

Digital video watermarking can be achieved by either applying still image technologies to each frame of the movie or using dedicated methods that exploit inherent features of the video sequence.
 
 
The table on the right provides a partial list of still and/or moving picture watermarking concepts.

AlpVision does not have direct products for sale to protect video streams against fraudulent copies, but it licenses its technology to third parties. AlpVision filed US and EU registered patents, in cooperation with the Ecole Polytechnique F