Light weight MP3 watermarking method for mobile terminals
Light weight MP3 watermarking method for mobile terminals
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DOI：
10.1145/1101149.1101247
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发表时间：
2005-11
期刊：
影响因子：
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通讯作者：
K. Takagi;S. Sakazawa
中科院分区：
文献类型：
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作者：
K. Takagi;S. Sakazawa
本文提出了一种适用于计算资源有限的移动终端的MP3水印方法。考虑到嵌入的信息是版权信息和元数据，应在播放之前提取这些信息，因此水印检测过程应快速执行。然而，传统方法无法高速检测数字水印。因此，本文建议更改 MP3 数据中的比例因子值，以免破坏音频质量。评估测试表明，该方法能够嵌入3位/帧信息并以非常高的速度进行检测，而不会降低音频质量。最后，本文描述了我们的数字签名认证提案的应用示例。
This paper proposes an MP3 watermarking method that is applicable to a mobile terminal with limited computational resources. Considering that the embedded information is copyright information and metadata, which should be extracted before playing back, the watermark detection process should be executed quickly. However, conventional methods cannot detect a digital watermark at high speed. Thus, this paper proposes that scalefactor values in MP3 data be altered so as not to spoil audio quality. Evaluation tests show that the proposed method is capable of embedding 3bits/frame information and detecting at very high speed without degrading audio quality. Finally, this paper describes an application example of our proposal for authentication with a digital signature.