Efficient audio data hiding via parallel combinatory spread spectrum

Peng Zhang, Ye Li, Xiaofeng Ma, Yanhong Fan, Xiaoxia Chen
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引用次数: 4

Abstract

Spread spectrum (SS) modulation is one of the most commonly used methods for data hiding. However, the capacity of SS-based methods is rather limited. To improve the hiding efficiency, this paper presents a method that employs the parallel combinatory spread spectrum (PCSS), in which the hidden data can be transmitted in parallel with a combination of a few pseudo noise sequences. An informed embedding strategy is applied to PCSS data hiding to improve its robustness. Compared with the methods using the techniques of code division multiple access (CDMA) and M-ary SS modulation, the proposed method can provide a much higher achievable capacity with similar decoding complexity. This method is evaluated in an audio data hiding system, and the experimental results show that the embedded data can resist typical signal processing and attacks, even in high-capacity applications.
有效的音频数据隐藏通过并行组合扩频
扩频(SS)调制是最常用的数据隐藏方法之一。然而,基于ss的方法的能力是相当有限的。为了提高隐藏效率,本文提出了一种采用并行组合扩频(PCSS)的方法,将隐藏数据与若干伪噪声序列的组合并行传输。将知情嵌入策略应用于PCSS数据隐藏中,提高了其鲁棒性。与使用码分多址(CDMA)和M-ary SS调制技术的方法相比,该方法可以在相同的解码复杂度下提供更高的可实现容量。在音频数据隐藏系统中对该方法进行了测试,实验结果表明,即使在大容量应用中,嵌入的数据也能抵抗典型的信号处理和攻击。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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