摘要
针对嵌入的水印信息与宿主信息存在一定关联性,深入研究了音频水印的盲检测方案,通过设定不同的假设条件,分析了其对应的盲水印检测过程。首先介绍了音频水印算法的嵌入过程和水印盲检测原理,然后深入分析了音频水印盲检测过程中水印信息与宿主信息之间的关联性,并分别以半盲检测算法和盲检测算法为代表,分析了水印信息与宿主信息之间的关联性,并得出了量化的计算式。
For the correlation existed between the embedded watermark information and the host information, the blind audio watermark detection scheme is intensively studied. Through the setting-up of different hypothetical conditions, its corresponding blind watermark examination process is analyzed. The embedding process of audio watermark algorithm and the working principle of watermark detection are given first, then the correlation between watermark information and host information in the process of blind audio watermark detection is analyzed. In addition, with semi-blind detection algorithm and blind detection algorithm as samples, the correlation between watermark information and host information is discussed, and thus the quantification formula is obtained.
出处
《通信技术》
2011年第12期84-86,共3页
Communications Technology
基金
广西教育厅科研基金(基于数字水印的印刷品防伪技术研究
No.200911LX490)
关键词
音频水印
盲检测
关联性
计算式
算法
audio watermark
blind detection
correlation
formula
algorithm
