Video-DNA: Large-scale server-side watermarking

We introduce a new server-side watermarking method for video-on-demand systems which we call “VideoDNA”. The method is session based, i.e., each video stream receives an individual watermark (in some references also called fingerprint). The method is generic, since it can be integrated in any video-on-demand system without essential performance reduction, without increase in the transmission bandwidth, and without requiring changes in the network and in the receivers. There is no need for decoding or decrypting the video files on the server, which provides additional security. Finally, the method is large scale, since it does not significantly increase the complexity of streaming servers and, thus, the number of parallel streaming sessions that can be watermarked is only limited by the server architecture.