Title :
A Robust Algorithm Against A/D and D/A Attacks
Author :
Yu Huang ; Chao Zhou ; He Sun
Author_Institution :
Sch. of Inf. Eng., Commun. Univ. of China, Beijing, China
Abstract :
In this paper, an audio watermarking algorithm is proposed which can resistant to A/D and D/A attacks. In the proposed algorithm, the randomized watermark image is coded based on OFDM. Then orthogonal transformation is used to reduce the PARR of the coded signal. The obtained watermark sequence is embedded into the audio based on the energy ratio of the wavelet coefficients in each audio period. The experiment result shows that the algorithm has good robustness and the watermark has better imperceptibility.
Keywords :
OFDM modulation; audio watermarking; image watermarking; wavelet transforms; A/D attacks; D/A attacks; OFDM; PARR reduction; audio watermarking algorithm; coded signal; orthogonal transformation; randomized watermark image; watermark sequence; wavelet coefficients; Computational intelligence; DA/AD attacks; OFDM; audio watermark; synchronization;
Conference_Titel :
Computational Intelligence and Design (ISCID), 2012 Fifth International Symposium on
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4673-2646-9
DOI :
10.1109/ISCID.2012.214
