H2O4M — Digital Watermarking for Media streams: Within the last years digital media have experienced enormous growth, replacing analog media. Yet so far unsolved are:
- ensure authenticity of the data to guarantee the identity of the owner or the sender to e.g. ensure copyrights
- proof of authenticity/originality (integrity), to identify manipulation.
At the beginning of the 90s industry and sciences started dealing with the areas of digital watermarking. The application of invisible, fragile watermarks showing where material has been modified is still in the fledgling stage. Public verification of a watermark in a safe ways is so far only possible with hardware protective measures, as a secret key has to be administered. The protection of a combination of e.g. video and audio as yet is not explored.
Existing methods are application specific with very inconsistent methodological parameters and weak levels of security. Still missing are consistent quality parameter definitions to make the methods comparable and to provide transparency for the user are missing.
Within this project is the classification and evaluation of a digital watermark to verify the authenticity and integrity of media documents. Based upon methods, concepts and ideas described in literature a classification scheme will be deployed. This scheme should suit all quality norms.
Close collaboration with the main user group — an archive user as the German Rundfunkarchiv — ensures verification and implementation of the exploratory findings into practical use already during the project term.
Contact: Dr. Thomas Kunkelmann
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