基于DCT域的零水印算法。
提出了一种新的二维矢量数字地图的零水印算法。
A new zero-watermark copyright protection algorithm for 2d vector maps is proposed.
零水印是不对原图像数据进行修改的一种新的数字水印技术。
Zero watermark is a new digital watermarking technology without modifying the data of original image.
而零水印不需要修改原始图像的任何信息，可以有更好的透明性。
We can improve the transparency of watermarks through a zero-watermarking method since it need not modify the original image information.
提出了一种结合奇异值分解（SVD）和DCT变换的零水印算法。
The paper brings forward a kind of hybrid SVD-DCT zero-watermark algorithm.
结合计算全息技术，提出一种新颖的抗几何攻击的鲁棒零水印算法。
A novel geometric robust zero-watermarking scheme, which USES Computer Generated Holograms (CGHs) as the watermarks, is presented.
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.
该算法结合图像的四叉树分解原理，利用图像小波域低频系数的特征来构造零水印。
The algorithm combines the quadtree decomposition of image, with making use of the characteristic of the lowest frequency coefficients in DWT domain to construct non-watermark.
与传统的零水印算法及数字全息水印算法相比，本文算法具有更好的抗几何攻击性能。
Compared with traditional zero-watermarking methods and digital hologram watermarking methods, the suggested watermarking scheme provides better performance for resisting geometric attacks.
为了提高抗几何攻击性能，同时保证不可见性，提出了一种结合傅立叶-梅林变换和零水印概念的图像水印算法。
In order to improve performance of resistance to the geometrical attack while keep invisible, a zero-watermark algorithm for digital image based on Fourier-Millin transforming is proposed.
该算法使用文档图像的局部二值模式(LBP)构造纹理谱图像，然后使用该纹理谱图像的直方图构造零水印信息。
This algorithm constructed the texture image based on Local Binary Pattern (LBP), and then zero watermark information was constructed from the texture spectral histograms of the texture image.
特别是数字零水印扩展方案大大降低了算法被逆向破解的风险，并为事前预防型数字水印算法的研究奠定了理论基础。
Zero watermark can alleviate the risk of calssification in some degree and provides a basis for beforehand digital watermark algorithm research.
图像零水印技术打破了常规水印算法修改图像数据以嵌入水印的作法，通过图像的特征构造具有标识意义的水印信息来实现图像的版权保护。
To protect the copyright of image, non-watermark algorithm constructs marking meaning watermark by the characteristic structure of image instead of embeddings watermark by altering the data of image.
基于完全零知识交互证明系统和位委托方案，提出了可证明的安全水印认证协议。
A proved secure protocol for watermark verification based on perfect zero knowledge interactive proof system and bit commitments scheme is proposed.
该算法安全性好，且生成的水印序列均值近似于零，为后面两种水印技术做准备。
The algorithms have good security and the mean of watermark sequences is close to zero, preparing for following two algorithms.
该方案基于量化函数定义各水印通道的零参考水印。
In this scheme, zero reference watermark is defined based on quantization function.
整个检测过程不会泄露任何有关水印信息，实现了一种零知识证明协议。
The whole detecting process will not reveal any watermarking message and implement a zero-knowledge proof protocol.
整个检测过程不会泄露任何有关水印信息，实现了一种零知识证明协议。
The whole detecting process will not reveal any watermarking message and implement a zero-knowledge proof protocol.
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