提出一种关系数据库水印算法，适用于数值型数据的版权保护。
An algorithm for relational database watermarking is proposed in this paper, and it is applicable to protect the copyright of numeric data.
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。
Because of the increasing use of relational database, database watermarking technique has become a studying focus.
针对现有水印算法的不足，提出了一种新的关系数据库水印算法。
A new database watermarking algorithm is put forward in view of existing algorithm insufficiency.
针对现有水印算法的不足，提出了一种新的脆弱性关系数据库水印算法。
A new fragile watermarking algorithm based on relational database is proposed in view of existing algorithm insufficiency.
本文主要的研究内容如下：第一，基于数值型属性的关系数据库水印技术的研究。
In this paper, the study reads as follows: First, based on the numeric attributes of a relational database watermarking technology research.
将混沌变换引入数据库水印处理，构造了一种基于混沌变换的数据库零水印算法。
Introduce the chaos transformation to database watermark working, construct a zero-watermarking algorithm for database based on chaotic sequences.
另外，在生成初始水印后又加入了混沌变换置乱水印，因此可提高数据库水印的鲁棒性和安全性。
Moreover, add change of order used chaotic sequences after the initial watermark generated; therefore this can improve the safety of database watermark.
目前关系数据的权利保护问题已引起人们广泛的关注，对数据库嵌入水印是一种有效的解决办法。
Protecting rights over relational data is of ever increasing interest at the present time and inserting the watermarks into the databases is a effective way.
水印关系数据库对数据库的安全有着广阔前景和实际应用价值。
The watermarking relational databases have wide foreground and real application value for the database's security.
理论分析和实验结果表明，该算法具有隐蔽性好，水印恢复不需要原始数据库，水印的鲁棒性及可嵌入的信息量可以通过调整参数取值进行调节等特点。
This algorithm, which based on relational databases' character and the number of quantitative data's effective bits, combines with the theory of error correction in the field of digital communication.
基于该系统设计了脆弱水印保护人脸图像数据库和保存额外信息方案，提高了安全性，丰富了人脸图像信息内容。
Based on the experiment system, a scheme using the digital watermark to protect face information database is proposed, which can increase the security and enrich the content of face images.
此外，视频流的分析、图像数据库技术，以及图像、视频的水印技术也极具发展前景。
Besides, video stream analysis, image database technology and video watermark also possess bright application prospect.
关系数据库数字水印技术能够很好的解决数据库的版权归属问题。
Relational database digital watermarking technology can be a good solution to the database is a copyright issue.
关系数据库数字水印技术能够很好的解决数据库的版权归属问题。
Relational database digital watermarking technology can be a good solution to the database is a copyright issue.
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