On distortion-compensated dither modulation data-hiding with repetition coding

An exhaustive analysis of the distortion-compensated dither modulation (DC-DM) data-hiding method with repetition coding is presented. Two decoding strategies, maximum likelihood lattice decoding and Euclidean distance decoding, are discussed and some simplifications presented. An exact performance...

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Bibliographic Details
Published in:IEEE transactions on signal processing 2006-02, Vol.54 (2), p.585-600
Main Authors: Comesana, P., Perez-Gonzalez, F., Balado, F.
Format: Article
Language:English
Subjects:
Additive noise
Applied sciences
Bit error rate
Coding
Decoding
Distortion
Euclidean distance
Exact sciences and technology
Information, signal and communications theory
Lattice decoding
Lattices
Mathematical models
Maximum likelihood decoding
Miscellaneous
Modulation
Modulation coding
Noise robustness
Operations research
Optimization methods
Performance analysis
Quantization
quantization-based data hiding
Repetition
side information
Signal processing
Studies
Telecommunications and information theory
watermarking
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Summary:An exhaustive analysis of the distortion-compensated dither modulation (DC-DM) data-hiding method with repetition coding is presented. Two decoding strategies, maximum likelihood lattice decoding and Euclidean distance decoding, are discussed and some simplifications presented. An exact performance analysis in terms of the bit error rate (BER) is given; such an exact analysis is currently not available in the literature. Two methods for computing the exact BER and several approximations and bounds, most of them in closed form, are provided. These approximations are employed to propose two novel improvements on the standard DC-DM method with repetition: the use of a weighted Euclidean distance, with optimizable weights, and a vector form of the distortion compensation parameter. Both account for significant performance improvements. DC-DM is compared with quantization methods in the projected domain, showing worse performance against additive noise attacks but higher robustness to cropping attacks. A performance analysis of DC-DM under coarse quantization that can be specialized to JPEG compression is also supplied. All our results are validated with numerical simulations with both synthetic data and real images.
ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2005.861894