An energy efficient and high security watermarking mechanism based on DS-CDMA

Authors:
Li-Te Lee;Yu-Ting Pai;Shanq-Jang Ruan;Jürgen Götze
Affiliations:
Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C.;Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C.;Department of Electronic Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan, R.O.C.;Department of Computer Engineering Institute, Dortmund University of Technology, Dortmund, Germany
Venue:
ICME'09 Proceedings of the 2009 IEEE international conference on Multimedia and Expo
Year:
2009

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Abstract

In order to implement watermarking scheme for embedded systems, we present an energy efficient and robust watermarking mechanism based on DS-CDMA. The DS-CDMA based watermarking can obtain the capacity according to the orthogonal spreading codes. The high capacity can improve the robustness efficiently. For power saving, we propose a low complexity frequency domain transform for the DS-CDMA embedding method. The experimental results show that our approach not only reduces 82.19% energy consumption, but can survive from various signal distortions such as JPEG compression, sharpening, blurring, intensity adjustment, and cropping.