Watermarking algorithm based on scalefactors in MP3 compression domain

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (27): 58-62.

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Watermarking algorithm based on scalefactors in MP3 compression domain

WEN Renyi1, PAN Feng1，2, SHEN Junwei1

1.Key Lab of Network & Information Security of Armed Police Force, Engineering University of Armed Police Force, Xi’an 710086, China
2.Key Lab of Network & Information Security of the Ministry of Education, Xidian University, Xi’an 710071, China

Online:2012-09-21 Published:2012-09-24

针对MP3压缩域比例因子的音频水印算法

文仁轶1，潘峰1，2，申军伟1

1.武警工程大学电子技术系网络与信息安全武警部队重点实验室，西安 710086
2.西安电子科技大学网络信息安全教育部重点实验室，西安 710071

Abstract

Abstract: Scalefactor related information in MP3 bitstream and its function in decoding process are analysed. This paper proposes a digital audio watermarking algorithm for MP3 compression domain. Since the algorithm chooses proper scalefactors, it can effectively control the influence of embedded watermark on original audio media, and the watermark is inaudible, while utilizing chosen conditions the algorithm achieves self-adaptation and implicit synchronization. Simulation experiments show that the proposed algorithm not only has good hearing transparency and robustness, but also embeds and extracts fast enough to meet real-time needs.

Key words: digital watermark, audio watermark, MP3, scalefactor, compression domain

摘要： 分析了MP3码流中比例因子相关信息及其在解码过程中的作用，提出了一种MP3压缩域音频水印算法。该算法能对比例因子进行合理选择，从而有效控制水印嵌入对原始音频的影响，具有良好的听觉透明性，利用选择条件实现了自适应和隐同步。仿真实验表明，该算法不仅具有良好的听觉透明性和较强的鲁棒性，而且嵌入和提取的速度快，能满足实时需求。

关键词: 数字水印, 音频水印, MP3, 比例因子, 压缩域

WEN Renyi1, PAN Feng1，2, SHEN Junwei1. Watermarking algorithm based on scalefactors in MP3 compression domain[J]. Computer Engineering and Applications, 2012, 48(27): 58-62.

文仁轶1，潘峰1，2，申军伟1. 针对MP3压缩域比例因子的音频水印算法[J]. 计算机工程与应用, 2012, 48(27): 58-62.

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Watermarking algorithm based on scalefactors in MP3 compression domain

针对MP3压缩域比例因子的音频水印算法

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