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Limit capacity of non-stochastic steganographic systems and Hausdorff dimension

Ryabko, D (INRIA, Lille, France)
Thursday 05 July 2012, 17:00-17:30

Seminar Room 1, Newton Institute


It was shown recently that the limit capacity of perfect steganography systems for i.i.d. and Markov sources equals the Shannon entropy of the ``cover'' process. Here we address the problem of limit capacity of general perfect steganographic systems. We show that this value asymptotically equals the Hausdorff dimension of the set of possible cover messages.


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