抗MP3编码的音频水印频域嵌入方案

Journal of Applied Sciences ›› 2005, Vol. 23 ›› Issue (4): 341-344.

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Frequency Domain Audio Watermark Embedding Capable of Resisting MP3 Encoding

LIU Wei, WANG Shuo-zhong, ZHANG Xin-peng

School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2004-04-21 Revised:2004-07-01 Online:2005-07-31 Published:2005-07-31

Abstract

Abstract: Based on the psychoacoustic model Ⅱ and perceptual entropy (PE) used in MP3 encoding, watermark embedding is carried out by modifying the frames with PE above 1 800.By adding a random complex sequence to the spectral components in the medium and low bands in the frequency domain, a watermark is embedded.Extraction of the embedded data is achieved by using a frequency domain correlation approach without the original host signal.Experimental results show that the proposed scheme can achieve high imperceptibility and satisfactory robustness against MP3 encoding.

Key words: audio watermarking, psychoacoustics auditory model, MP3 encoding, PE

CLC Number:

TP391

LIU Wei, WANG Shuo-zhong, ZHANG Xin-peng. Frequency Domain Audio Watermark Embedding Capable of Resisting MP3 Encoding[J]. Journal of Applied Sciences, 2005, 23(4): 341-344.

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Frequency Domain Audio Watermark Embedding Capable of Resisting MP3 Encoding

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