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Intellectual Property Rights Protection in Digital Media N. Nikolaidis C. Kotropoulos I. Pitas Artificial Intelligence and Information Analysis (AIIA) Laboratory Department of Informatics Aristotle University of Thessaloniki, Greece Digital Media Revolution • Usage of digital media has witnessed a tremendous growth Entertainment, arts, educational multimedia • Advantages Efficient storage Ease / speed of manipulation and transmission • Disadvantages Vulnerability to copyright infringement, tampering, unauthorized distribution Original Image Watermarked Image Can you tell the difference? IPR Protection Techniques • Goals Access / usage control Copy management Copyright certification, authentication • Solutions Encryption : Scrambling of data, allow descrambling to authorized users only Watermarking: Imperceptible embedding of copyright/access control data in digital media • Efficient solutions are yet to be found IPR Protection Research FP4/5 Face verification using elastic graph matching • Face verification for secure access to multimedia services IST-MUHCI (Multimodal Human-Computer Interaction) ACTS-M2VTS (Multi-modal Verification Techniques for Teleservices and Security Applications) Watermarked Image Original Image •Copyright protection / authentication watermarking of images / video / audio IST-CERTIMARK (Certification for watermarking techniques) LTR/ESPRIT-INSPECT (Innovative Signal Processing Exploiting Chaotic Dynamics) RACE-ACCOPI (Access Control and Copyright Protection for Images) YES Has this image been tampered? Original image Detected tampered regions Tampered regions overlaid on the image AIIA Lab Profile • • • • • Two faculty members Twenty researchers Twenty projects (EU, national) Three hundred publications Twenty years of research Image / video processing & analysis Speech processing 3-D Image processing Biometrics