Towards geometrically robust data-hiding with structured codebooks |
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Authors: | Emre Topak Sviatoslav Voloshynovskiy Oleksiy Koval M Kivanc Mihcak Thierry Pun |
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Affiliation: | (1) Stochastic Image Processing Group, CUI-University of Geneva, 24 rue General-Dufour, 1211 Geneva, Switzerland;(2) Microsoft Research, Redmond, USA |
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Abstract: | In this paper we analyze performance of practical robust data-hiding in channels with geometrical transformations. By applying
information-theoretic argument we show that performance of a system designed based on both random coding and random binning
principles is bounded by the same maximal achievable rate for the cases when communication channel includes geometrical transformations
or not. Targeting to provide theoretic performance limits of practical robust data-hiding we model it using a multiple access
channel (MAC) with side information (SI) available at one of encoders and present the bounds on achievable rates of reliable
communications to such a protocol. Finally, considering template-based and redundant-based design of geometrically robust
data-hiding systems, we perform security analysis of their performance and present results in terms of number of trial efforts
the attacker needs to completely remove hidden information. |
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Keywords: | Security analysis Robust data-hiding Structured codebooks Geometrical synchronization Multiple access channel |
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