Absrtact: Vector quantization (VQ) - based digital watermarking technique plays a newly developed branch in digital watermarking research fields recently.
摘要：基于矢量量化的数字水印是数字水印技术一个新的研究领域。
There are now many published digital watermarking research papers covering image, video and audio documents, which demonstrate how effective these methods are.
目前，基于图像、视频和音频的数字水印研究成果很多，并且很多方法是比较有效的。
The watermarking technique robust to both signal processing attacks and geometrical attacks is one of the hotspots and difficulties in the digital watermarking research.
能有效抵抗信号处理又能抵抗几何攻击是当今数字水印研究的热点和难点之一，提出一种能够抵抗信号处理、旋转、缩放和平移的鲁棒视频水印。
Firstly, this paper introduces the development and some related concepts of digital watermarking, which elucidates the background and significance of the research.
首先，本文介绍了数字水印问题的提出及其相关概念，阐述了本课题的研究背景和意义。
This research will play an effective role in the promotion and application of the digital watermarking technique.
本研究对数字水印技术的推广应用将起到积极的推动作用。
In this paper, a dual color image watermarking algorithm is proposed based on the research of color digital watermark.
本文对彩色水印技术进行了详细地研究，提出了一种双彩色数字水印方案。
The main problem to research halftone digital watermarking is how to ensures the robust of watermark and the vision of halftone images at the same time.
半色调图像数字水印研讨的主要难点是如何在保证嵌入水印健壮性的前提下绝可能地保证宿主图像的视觉后果。
It would be one of the unremitting research works to seek watermarking methods for halftoned images that could resist as many attack algorithms as possible.
寻找对尽可能多的攻击算法有免疫性的半色调图像的数字水印方法将持续成为研究的主要方向之一。
In this paper, we limit the scope of our research to robust and imperceptible digital watermarking for copyright protection.
在本文中，我们将研究主要集中在用于版权保护的鲁棒的不可见数字水印。
This paper mostly combines with MPEG-2 video Compression Standard, and makes some research on video content authentication watermarking techniques.
本文主要结合MPEG - 2视频压缩标准，对视频内容认证水印技术进行了研究。
The latest research on watermarking attack indicates that the robust evaluation used by image watermarking systems is incomplete as yet.
最新的数字水印攻击研究表明，至今为止图像水印系统所使用的鲁棒性评价是不完善的。
As an effective implements in the copyright protection and integrity authentication for multimedia, digital watermarking techniques has become an active and flouring research topic.
数字水印技术是对多媒体版权进行保护和完整认证的有效工具之一，近年来成为研究热点。
Finally, the thesis is concluded by pointing out some open issues on the research of chaos based encryption and image watermarking as well as highlight some further research directions.
图像是否受到篡改，并检测出图像受到篡改的部位。最后论文分析了当前在混沌加密与图像水印研究中存在的问题，并指出了进一步的研究方向。
So this paper puts forward the research approach of color images watermarking based on DWT, this method can increase the protection information and expand and the hiding range.
为此，本文提出基于DWT域的数字水印嵌入彩色图像的研究方法，该方法为增加知识产权的保护信息量和扩大隐藏对象范围提供一种途径。
Digital watermarking technique is becoming one of the hot research fields of copyright protecting, pirate detection for CAD graphic data under the network environment.
数字水印技术正成为网络环境下CAD图形的版权保护和侵权检测研究的热点。
Digital watermarking is an new research direction. The robustness performance of an algorithm is greatly determined by the length of information embeded.
数字水印是一种新的多媒体信息处理技术，嵌入信息的长度直接影响到算法的性能。
But more research of the digital watermarking focus on algorithms and theoretical basis, while ignoring the design of watermark application protocol and implementation.
但是目前对于数字水印的研究多集中在算法和理论基础方面，而忽视了水印的应用协议和实施标准设计和制定。
In this paper, the study reads as follows: First, based on the numeric attributes of a relational database watermarking technology research.
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。
At present, there are mainly two branches of information security research based on digital pictures, which are watermarking and steganography.
目前，基于多媒体图像的信息安全研究主要集中在数字水印与图像信息隐藏两方面。
Digital watermarking technique is emerging as a cutting edge research field of information security in recent years.
数字水印技术是近几年来信息安全界兴起的一个前沿研讨范畴。
Among the plethora of digital watermarking techniques, researchers have paid more attention to video watermarking technique because of it's high research value and potential commercial profits.
在各类数字水印技术中，数字视频水印技术由于其自身的研究价值和潜在的经济利益而倍受各国学者的关注。
In image fragile watermarking technique, the algorithm's security, the accuracy of localization and the capability of recovering tampered region are the main areas of research.
在图像脆弱水印技术中，算法安全性、定位精度和篡改恢复效果是主要的研究方向。
Digital watermarking technique is an important research field of multimedia information security.
数字水印技术是多媒体信息安全领域的一个重要研究课题。
The research background and the present study of digital watermarking are given. The basic principle and the typical algorithm of digital image watermarking are mainly analyzed.
介绍了数字水印技术的研究背景和现状，分析了图像数字水印技术的基本原理和典型算法等。
Digital watermarking technique is an effective method for digital content protection such as copyright protection and becomes an important research area in the field of information hiding.
数字水印技术是实现数字产品版权保护的一种有效方法，目前已成为信息安全领域的研究热点，也是信息隐藏研究领域的重要分支。
On the base, the algorithm of space domain and transform domain and research on the attacks on digital watermarking are discussed.
在此基础上，讨论空间域数字水印算法、变换域数字水印算法以及对数字水印的攻击研究。
What digital watermarking technique mainly research on is still images, video and audio signals.
数字水印的研究对象主要包括静止图像、视频和声频信息。
With the enforcement of the new compression standard of picture and video, the digital watermarking technology based on DWT are becoming the focus of the research of digital watermarking.
随着新的图像和视频压缩标准的施行，基于离散小波变换的数字水印技术成为研究的热点。
With the enforcement of the new compression standard of picture and video, the digital watermarking technology based on DWT are becoming the focus of the research of digital watermarking.
随着新的图像和视频压缩标准的施行，基于离散小波变换的数字水印技术成为研究的热点。
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