摘要
为了有效地保护数字化文本的版权,防止文本被非法拷贝和传播,提出一种新的基于TMDS的文本零水印算法。针对文本文档特点,引入了一种文本语义形式化模型TMDS,把文本内容抽象成一个篇章多级依存树形结构,并以树形结构为基础,实现了文本数字水印的加载与检测。实验结果表明,水印具有较好的隐蔽性和鲁棒性,可以有效地保护文本版权。
A novel algorithm of text zero-watermarking is presented based on TMDS, to protect copyright of digital text document, prevent them from illegal copying and diffusing. A formal descriptive model of text semantic TMDS, which is introduced with the characteristic of text document, the text content is abstracted to text multilevel dependency structure. And thus the embedding and detecting of text digital zero-watermarking is realized. Results of experiments show that the watermark is perceptually invisible and robust, thus available to copyright protection.
出处
《计算机工程与设计》
CSCD
北大核心
2008年第24期6420-6422,共3页
Computer Engineering and Design
关键词
数字水印
文本水印
篇章多级依存结构
版权保护
鲁棒性
digital watermarking
text digital watermarking
text multilevel dependency structure
copyright protection
robust
