Title :
A novel robust audio watermark algorithm based on stochastic resonance
Author :
Zhang, Li ; He, Di
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A novel audio watermark algorithm based on stochastic resonance (SR) in the DWT and DCT domain is proposed. In this paper, the watermark is viewed as weak binary signals, and the DWT and DCT domain coefficients of audio carrier are randomly permuted to be an approximate white Gaussian noise. In decode-process, after the preprocessing of the audio to be decoded, the DWT and DCT domain coefficients are used as the input of the stochastic resonance system, by adjusting the parameter of the stochastic resonance processor, the detection of watermark can be achieved. Simulation results show that the watermarking scheme is robust, invisible and widely usable.
Keywords :
AWGN; audio coding; discrete cosine transforms; discrete wavelet transforms; watermarking; approximate white Gaussian noise; audio watermark algorithm; decode-process; discrete cosine transform; discrete wavelet transform; stochastic resonance; Background noise; Decoding; Equations; Gaussian noise; Robustness; Signal processing; Signal processing algorithms; Stochastic resonance; Strontium; Watermarking; audio watermark; robustness; stochastic resonance;
Conference_Titel :
Microelectronics & Electronics, 2009. PrimeAsia 2009. Asia Pacific Conference on Postgraduate Research in
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-4668-1
Electronic_ISBN :
978-1-4244-4669-8
DOI :
10.1109/PRIMEASIA.2009.5397415
