PC-based real-time video watermark embedding system independent of platform for parallel computing

Authors:
Takaaki Yamada;Isao Echizen;Hiroshi Yoshiura
Affiliations:
Yokohama Research Laboratory, Hitachi, Ltd., Totsuka-ku, Yokohama, Japan;National Institute of Informatics, Chiyoda-ku, Tokyo, Japan;The University of Electro-Communications, Electro-Communication, Chofu, Tokyo, Japan
Venue:
Transactions on Data Hiding and Multimedia Security VII
Year:
2012

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Abstract

An improved system is described for embedding watermarks into video frames in real time using software running on an ordinary personal computer and that is independent of the parallel-computing platform. It uses standard video I/O and is separate from the encoding process, so it can be incorporated into various types of encoding and distribution systems, which makes it well suited for distributing live content. Real-time processing is achieved by making the watermark-pattern generation process common to every frame a pre-process and by reusing the watermark pattern output from this pre-process. It is also achieved by storing the watermarked video frames into video memory on the video I/O board, thereby eliminating the need for storing them in buffers on hard disk. Testing of a prototype system for standard-definition video demonstrated the validity of this approach.