اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدInformation-theoretic resolution of perceptual WSS watermarking of non i.i.d. Gaussian signals
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نشر من قبل
Ga\\\"etan Le Guelvouit
تاريخ النشر
2008
مجال البحث
الهندسة المعلوماتية
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English
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The theoretical foundations of data hiding have been revealed by formulating the problem as message communication over a noisy channel. We revisit the problem in light of a more general characterization of the watermark channel and of weighted distortion measures. Considering spread spectrum based information hiding, we release the usual assumption of an i.i.d. cover signal. The game-theoretic resolution of the problem reveals a generalized characterization of optimum attacks. The paper then derives closed-form expressions for the different parameters exhibiting a practical embedding and extraction technique.
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