本论文主要探讨了变换域的数字水印技术问题。
In the dissertation, we mainly study the technologies of digital watermarking.
图像的去噪方法基本上可分为变换域法和空间域法两大类。
The image de-noising method basically may divide into two kinds: transform domain de-noising and spatial domain de-noising.
提出了一种基于图像特征提取和变换域相关的图像匹配方法。
The new method of image matching based on feature extraction and transform domain correlation is proposed in this paper.
论文研究以图象为载体的信息隐藏和变换域鲁棒数字水印技术。
The paper is devoted to researching information hiding technology and transform domain robust watermarking technology based on image cover.
对一种基于自适应门限的变换域窄带干扰抑制技术进行了研究。
A method of narrowband interference suppression in transform-domain, which is based on adaptive threshold, is presented.
首先较细地研究了时域、频域和变换域最小均方自适应滤波器。
Firstly we have detailedly studied the time-domain, frequency-domain and transform-domain LMS adaptive digital filters.
这两种方法都是通过确定逆傅立叶变换域最大峰值位置来获得配准信息。
The both methods obtain registration information by determining maximum peak in inverse Fourier Transforms domain.
着重分析了变换域数字水印系统的特征及常见攻击，给出了一些相应的对策。
Characters and common attacks of transform domain digital watermark system were analyzed on emphasis. And we give some corresponding countermeasures.
提出了DCT变换域上基于人类视觉特性（HVS）的两种盲水印添加方法。
Two blind watermark algorithms based on HVS in DCT domain are proposed.
本文分别介绍了基于图像灰度、颜色空间变换和变换域的三种图像融合算法。
This article introduced the image fusion algorithms of gray-scale-based images, color-space conversion and transformation domain respectively.
提出了对回波信道的初估计并利用变换域LMS算法进行信道跟踪的一种方案。
Echo channel estimation and the tracking of channel using the transform domain LMS algorithm are introduced in this article.
在检测变换域峰值点时，采用了结合全局CFAR检测的最大值点搜索的方法；
The peak values in the transform area are detected by a maximum search integrating global CFAR detector.
在此基础上推导了适合瞬态弹性波对异质体散射求解的变换域位移场积分方程。
Furthermore, an integral equation in transformed filed, which suited to calculate the instantaneous elastic wave scattering by a number of irregular scatterers embedded in an elastic body is derived.
提出了一种可用于版权认证的基于小波变换域自适应量化步长的图像盲水印算法。
A new image blind watermarking algorithm based on adaptive quantization step in discrete wavelet transform (DWT) is proposed, which can be used in copyright authentication.
通过图像块与相似块在DCT变换域少数低频系数的比较，来确定匹配的相似块。
This method compares the few low frequency DCT transform coefficients of the range blocks and domain blocks to find out the matched domain block.
该算法从变换域提取全部特征参数，采用决策理论算法，实现调制类型的自动识别。
Based on the characteristic parameters extracted from transform domains, the automatic modulation recognition has been realized by employing decision theory.
文中利用分层复数交叠变换域相位相关方法进行匹配提出了一种新的视差估值方法。
We propose a new method for disparity estimation in this paper, in which the hierarchical complex lapped transform phase correlation is used.
提出一种基于最大后验和非局域约束的非下采样轮廓波变换域SAR图像去噪方法。
An algorithm of SAR image denoising in nonsubsampled contourlet transform (NSCT) domain based on maximum a posteriori (MAP) and non-local (NL) restriction is proposed.
利用热弹体运动方程和热传导方程耦合问题的变换域解，求解其极点留数的解析表达式。
For the transformed solution of the thermoelastic and heat conduction equations coupled problem, the analytical representation of the pole residues is obtained.
本论文主要研究了基于变换域上的两个图像处理技术，即数字水印技术和图像压缩技术。
In the dissertation, we study two technologies of image processing based on frequency domain. The one is on digital watermarking, the other is on image compressing.
介绍了基于MMSE维纳滤波算法，变换域信道估计算法，以及判决反馈信道估计算法。
Introduce the Wiener filter algorithm base on MMSE, and time domain channel estimation algorithms.
仿真结果表明，重叠双正交变换域干扰抑制技术可改善系统性能，是一种稳健的处理技术。
The simulation results show that the lapped biorthogonal transform domain excision technique is capable of improving system performance and enhancing the robustness of the receiver.
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。
On the base, the algorithm of space domain and transform domain and research on the attacks on digital watermarking are discussed.
本文提出了一种基于DCT变换域的用改进LSB算法嵌入带rs纠错码的数字水印方法。
The article proposes an improved LSB watermarking algorithm based on the DCT domain and the RS correction.
合成孔径雷达(SAR)图像相干斑噪声滤波技术分成三类：多视处理、统计滤波和变换域滤波。
Synthetic Aperture Radar (SAR) speckle filtering techniques can be classified into three categories: multi-look processing, statistical filtering and filtering in transform domain.
该文提出一种基于门限估计的直接序列扩频(DS - SS)通信系统窄带干扰变换域抑制方法。
This paper proposes a method for narrowband interference suppression in Direct Sequence Spread System (DS-SS).
本文基于人类视觉系统(HVS)的特性，提出了一种结合空间域和DCT变换域的数字水印新算法。
Based on the features of human visual system (HVS) a new watermarking algorithm that combines spatial and DCT domain is proposed for digital images in this paper.
本文基于人类视觉系统(HVS)的特性，提出了一种结合空间域和DCT变换域的数字水印新算法。
Based on the features of human visual system (HVS) a new watermarking algorithm that combines spatial and DCT domain is proposed for digital images in this paper.
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