计算机工程 ›› 2008, Vol. 34 ›› Issue (4): 34-36.doi: 10.3969/j.issn.1000-3428.2008.04.012

• 博士论文 • 上一篇    下一篇

基于心理声学模型的音频水印能量与可靠性研究

刘海燕1,郑雪峰1,程仁峰2,王 颖1   

  1. (1. 北京科技大学信息工程学院,北京 100083;2. 中央民族大学数学与计算机科学学院,北京 100081)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-02-20 发布日期:2008-02-20

Analysis of Audio Watermarking Energy and ReliabilityBased on Psychoacoustic Model

LIU Hai-yan1, ZHENG Xue-feng1, CHENG Ren-feng2, WANG Ying1   

  1. (1. School of Information Engineering, University of Science and Technology, Beijing 100083;2. School of Mathematics and Computer Science, Central University for Nationalities, Beijing 100081)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-02-20 Published:2008-02-20

摘要: 对基于心理声学模型的音频水印算法的能量与相关检测可靠性的关系进行了分析研究。给出计算音频水印相关检测的检测阈值的方法,并描述了水印能量、检测阈值以及信噪比与检测误码率的关系。实验结果验证了水印检测错误率随着水印能量的增加而降低,随着信噪比的增大而增加。

关键词: 音频水印, 心理声学模型, 能量, 相关检测, 可靠性

Abstract: This paper analyzes the energy and reliability of audio watermarking algorithm based on psychoacoustic model. It presents the method of detection threshold of watermark correlation detection, and describes the connection of the watermark energy, detection threshold, and SNR with the detection error. The experimental results show that watermarking detection error decreases with the increase of watermarking energy and SNR .

Key words: audio watermarking, psychoacoustic model, energy, correlation detection, reliability

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