An interpolation-based watermarking scheme
Signal Processing
Anonymous fingerprinting with robust QIM watermarking techniques
EURASIP Journal on Information Security
Image-Adaptive Spread Transform Dither Modulation Using Human Visual Model
Computational Intelligence and Security
Dither Modulation in the Logarithmic Domain
IWDW '07 Proceedings of the 6th International Workshop on Digital Watermarking
An efficient buyer-seller watermarking protocol based on composite signal representation
Proceedings of the 11th ACM workshop on Multimedia and security
Hyperbolic RDM for nonlinear valumetric distortions
IEEE Transactions on Information Forensics and Security
Coding schemes for relay-assisted information embedding
IEEE Transactions on Information Forensics and Security
On estimation accuracy of desynchronization attack channel parameters
IEEE Transactions on Information Forensics and Security
Speech watermarking for analog flat-fading bandpass channels
IEEE Transactions on Audio, Speech, and Language Processing
An efficient video watermarking scheme with luminance differential DC coefficient modification
PCM'07 Proceedings of the multimedia 8th Pacific Rim conference on Advances in multimedia information processing
Asymptotically optimum universal watermark embedding and detection in the high-SNR regime
IEEE Transactions on Information Theory
A logarithmic quantization index modulation for perceptually better data hiding
IEEE Transactions on Image Processing
Technical Section: Robust and blind mesh watermarking based on volume moments
Computers and Graphics
High-rate data-hiding robust to linear filtering for colored hosts
EURASIP Journal on Information Security
On the Implementation of a Hardware Architecture for an Audio Data Hiding System
Journal of Signal Processing Systems
Watermarking security: a survey
Transactions on Data Hiding and Multimedia Security I
A novel multibit watermarking scheme combining spread spectrum and quantization
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
An overview of digital speech watermarking
International Journal of Speech Technology
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A novel quantization-based data-hiding method, called Rational Dither Modulation (RDM), is presented. This method retains most of the simplicity of the conventional dither modulation (DM) scheme, which is largely vulnerable to amplitude scalings and modifies it in such a way that the result becomes invariant to gain attacks. RDM is based on using a gain-invariant adaptive quantization step-size at both embedder and decoder. This causes the watermarked signal to be asymptotically stationary. Mathematical tools are used to determine the stationary probability density function, which is later used to assess the performance of RDM in Gaussian channels. It is also shown that by increasing the memory of the system, it is possible to asymptotically approach the performance of DM, still keeping invariance against gain attacks. RDM is compared with improved spread-spectrum methods, showing that the former can achieve much higher rates for the same bit error probability. Experimental results confirm the validity of the theoretical analyses given in the paper. Finally, a broader class of methods, that extends gain-invariance to quantization index modulation (QIM) methods, is also presented.