Robust Image Corner Detection Through Curvature Scale Space
IEEE Transactions on Pattern Analysis and Machine Intelligence
Digital watermarking
Proceedings of the First International Workshop on Information Hiding
Attacks on Copyright Marking Systems
Proceedings of the Second International Workshop on Information Hiding
Robust content-based image searches for copyright protection
MMDB '03 Proceedings of the 1st ACM international workshop on Multimedia databases
Discriminant local features selection using efficient density estimation in a large database
Proceedings of the 7th ACM SIGMM international workshop on Multimedia information retrieval
Near-Optimal Hashing Algorithms for Approximate Nearest Neighbor in High Dimensions
FOCS '06 Proceedings of the 47th Annual IEEE Symposium on Foundations of Computer Science
A Robust Content-Based Copy Detection Scheme
Fundamenta Informaticae
Group-oriented fingerprinting for multimedia forensics
EURASIP Journal on Applied Signal Processing
Handbook of Research on Secure Multimedia Distribution
Handbook of Research on Secure Multimedia Distribution
Image copy detection with rotating tolerance
CIS'05 Proceedings of the 2005 international conference on Computational Intelligence and Security - Volume Part I
A counter-geometric distortions data hiding scheme using double channels in color images
IWDW'04 Proceedings of the Third international conference on Digital Watermarking
An additive approach to transform-domain information hiding andoptimum detection structure
IEEE Transactions on Multimedia
Image retrieval based on histogram of fractal parameters
IEEE Transactions on Multimedia
Image-adaptive watermarking using visual models
IEEE Journal on Selected Areas in Communications
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
Image registration and object recognition using affine invariants and convex hulls
IEEE Transactions on Image Processing
Geometrically invariant watermarking using feature points
IEEE Transactions on Image Processing
A New Approach to Image Copy Detection Based on Extended Feature Sets
IEEE Transactions on Image Processing
Commutative Encryption and Watermarking in Video Compression
IEEE Transactions on Circuits and Systems for Video Technology
Collusion-Traceable Secure Multimedia Distribution Based on Controllable Modulation
IEEE Transactions on Circuits and Systems for Video Technology
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Copyright issues become more and more urgent with the wide spread of multimedia content over Internet, e.g., whether the media content is copyright-protected in multimedia social networks, or whether a media content is released on Internet illegally. To solve these problems, this paper proposes a content distribution and copyright authentication system based on media index and watermarking techniques. Before media distribution, the media content is marked (by embedding the ownership information or customer identification into the media), and the robust features that can be used both for media index and content emendation is extracted from the watermarked media and registered in a feature database. Some customer may leak out his media copy over Internet directly or after slight operations, such as rotation, shearing, scaling, translation, etc. To detect whether a media over Internet is copyright-protected or not, the following work is done. Firstly, a watermark is extracted from the media and compared with the original one. If the watermark exists, then the media is copyright-protected, and the authentication process is finished. Otherwise, a robust feature is extracted from the considered media and matched with the feature database. The matching result gives the operation parameters that are used to emend the media content. After media emendation, a watermark is extracted or detected again and used to authenticate the copyright. In this system, the robust feature is not only used to search the related media contents but also to emend the media in order to improve the robustness against such operations as adding noise, compression, rotation, shearing, scaling, translation, etc. Experimental results show that the combination of media index and watermark detection can improve the detection rate greatly.