Title :
A High-Capacity CDMA Watermarking Scheme Based on Orthogonal Pseudorandom Sequence Subspace Projection
Author :
Yang, Shouyuan ; Song, Zhanjie ; Park, Jong Hyuk
Author_Institution :
Sch. of Inf. Technol., Jiangxi Univ. of Finance & Econ., Nanchang, China
Abstract :
In this paper, we propose a high-capacity CDMA based watermarking scheme based on orthogonal pseudorandom sequence subspace projection. We introduced a novel idea to eliminate the interference due to the correlation between the host image and the code sequences in the watermark extraction phase, and therefore, improve the robustness and message capacity of the watermarking scheme. We give the implementation steps of the proposed scheme and test its performance under different attack conditions by a series of experiments. Experimental results show that the proposed scheme shows higher robustness than the canonical scheme under different attack conditions.
Keywords :
code division multiple access; image watermarking; orthogonal codes; random sequences; watermarking; canonical scheme; high-capacity CDMA watermarking scheme; orthogonal pseudorandom sequence subspace projection; watermark extraction phase; Decision support systems; Multimedia communication; Phase locked loops; CDMA watermarking; high-capacity; subspace projection; wavelet transform;
Conference_Titel :
Multimedia and Ubiquitous Engineering (MUE), 2011 5th FTRA International Conference on
Conference_Location :
Loutraki
Print_ISBN :
978-1-4577-1228-9
Electronic_ISBN :
978-0-7695-4470-0
DOI :
10.1109/MUE.2011.17