Improving the performance of wavelet domain spread spectrum watermarking systems using space-time block codes (Uzay-zaman blok kodlaması kullanarak dalgacık uzayı yayılı spektrum damgalama sistemlerinin performansının iyileştirilmesi)Sütunç, Murat and Keskinöz, Mehmet and Karabat, Çağatay (2009) Improving the performance of wavelet domain spread spectrum watermarking systems using space-time block codes (Uzay-zaman blok kodlaması kullanarak dalgacık uzayı yayılı spektrum damgalama sistemlerinin performansının iyileştirilmesi). In: IEEE 17th Signal Processing and Communications Applications Conference 2009 (SIU 2009), Antalya Full text not available from this repository. Official URL: http://dx.doi.org/10.1109/SIU.2009.5136438 AbstractIn this paper, we propose to use Alamouti's orthogonal space-time block code to improve the performance and the robustness of the spread spectrum watermarking systems. After employing a space-time block code, we embed the coded watermark sequence into the host image in discrete wavelet transform domain. Simulation results show that the use of the space-time block codes considerably increases the robustness of the spead spectrum watermarking system under various attacks.
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