【摘要】 数据库技术具有广阔的应用,数据库水印就成为一个研究热点。提出一种基于独立分量分析(ICA)的公开数据库水印方法。其思想是:首先对水印图像经过ICA处理得出若干个独立分量水印,利用迭代混合的方法嵌入水印,再利用盲源JADE算法提取水印,达到用较少的载体代价就可以嵌入水印信息的目的。理论分析和仿真实验结果表明该算法是有效的。更多还原

【Abstract】 Because of the increasing use of relational database, database watermarking technique has become a studying focus. A database public watermarking method was proposed based on Independent Component Analysis(ICA). The independent components could be achieved by ICA processing to watermarking information, and then, watermarking was embedded by using iterative mixing and the watermarking was extracted by blind JADE algorithm. The extraction of watermarking information could be implemented with less carrier. Theory analysis and emulated experiment results show that the scheme is feasible.更多还原