摘要
利用人耳听觉特性,结合MP3压缩特性,对音频信号中人耳不敏感区域的能量进行修改,实现数字水印的嵌入,同时不需要额外的信息作为同步标识.在嵌入信息的检测中,除了少量系统参数外不需要原始信号.实验表明该水印具有很好的隐蔽性,对于常见的攻击能表现出良好的稳健性.
This paper introduces a new technique of audio watermarking based on the property of the human auditory system (HAS) and MP3 coding, in which magnitudes of the frequency components below hearing thresholds are modified for watermark embedding. Neither the host signal nor any synchronization information is needed on the extraction side. Experimental results show that the proposed scheme can achieve high imperceptibility and satisfactory robustness against various common attacks.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
2004年第4期652-656,共5页
Journal of Xidian University
基金
国家自然科学基金资助项目(60072030)
关键词
音频水印
听觉门限
心理听觉模型
audio watermarking
hearing threshold
psychoacoustics auditory model
