Wavelets相关论文
Improved wavelet hierarchical threshold filter method for optical coherence tomography image de-nois
According to the speckle feature in Optical coherence tomography (OCT), images with speckle indicate not only noise but ......
In this paper, the Raman spectrum signal de-noising based on stationary wavelet transform is discussed. Haar wavelet is ......
Global and local contrast enhancement algorithm for image using wavelet neural network and stationar
A new contrast enhancement algorithm for image is proposed employing wavelet neural network (WNN) and stationary wavelet......
In this paper, an image processing method for improving the quality of optical coherence tomography (OCT) images is prop......
In this paper, a novel image fusion method based on the expectation maximization (EM) algorithm and steerable pyramid is......
In this paper a fusion method is proposed for merging a high-resolution panchromatic image and a low-resolution multispe......
The line of sight (LOS) wind velocity can be determined from the incoherent Doppler lidar backscattering signals. Noise ......
A new method for analyzing the phase distributions of deformed grating images on the surface of threedimensional (3D) ob......
By using orthogonal discrete wavelet transform (ODWT) and generalized cross validation (GCV), and combining with Luck-Ri......
In this paper, an image fusion method is proposed based on the non-separable wavelet frame (NWF) for merging a high-reso......
A retrieval scheme for liver computerize tomography (CT) images based on Gabor texture is presented. For each hepatic CT......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
A generalization of frame perturbation in Hilbert subspaces and its application to wavelet subspaces
A perturbation theorem for frames in a Hilbert space is obtained, which is a generalization of a result by Christensen.......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
将子波分析技术与随机动力学相结合,提出了突变点数建模代尺度气候预测新技术-突变点数建模技术,并将该技术应用于中国不同地区代......
The relationship between intermittent limit cycles and postural instability associated with Parkinso
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
To find the predual spaces PαRn) of QαRn) is an important motivation in the study of Q spaces. In this article, wavele......
The main purpose of this paper is to give a review on recent advances of wavelet in probability and statistics. Many int......
In this paper, a complete parameterization for the 3-band compact wavelet systems is presented. Using the parametric res......
The main purpose of this paper is to investigate the detection of jump points of a discontinuous function in the presenc......
The Hankel transform is an important transform. In this paper, westudy the wavelets associated with the Hankel transform......
The authors introduce nonseparable scaling function interpolation and show that its approximation can provide similar co......
We construct an unconditional basis in the Banach space Lp(Ω, ρ) for p ＞ 1 by using the refinement equation and the bas......
文章对门限自回归模型进行了研究,运用小波分析方法构造了延时和门限的两种估计量,同时估计了门限的数目.文章中获得了这些估计量......
A simple but efficient method has been proposed to select variables in heteroscedastic regression models. It is shown th......
A simple method, based on harmonic wavelet analysis is proposed for the decomposition of a given energy bounded signal i......
By investigating the limitation of existing wavelet tree based image compression methods, we propose a novel wavelet fra......
高压输电线路发生故障后的暂态电压或电流分量中含比工频分量更多的故障信息，充分利用这一信息是构成具有绝对选择性单端无通信保护......
提出了一种基于改进遗传算法的可靠性匹配方法。首先采用四阶中心B样条小波对实时图和基准图进行小波分解和边缘增强。然后,在粗尺......
基于小波基函数的正交逼近特性及运算矩阵,提出了一种求解混合H2/H∞鲁棒控制问题的新方法.该方法利用离散小波快速算法的数值矩阵......
对均匀B样条曲面的多分辨率小波表示进行了讨论,给出了双正交的均匀三次B样条小波两尺度关系的构造过程.针对感兴趣区域和背景区域......
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将小波分析方法用于系统工程中矩阵与向量积计算,建立矩阵的小波展开非标准形式与标准形式转换关系,根据小波Mallat快速算法设计相......
考虑单指数模型的结构性变化检验问题，要检验连接函数是否具有线性结构．应用了小波方法来处理此问题．在给出经验小渡系数的基础上，证明......
利用小波包分析和神经网络智能技术，首先用声发射传感器采集激振曲轴的信号，并对信号进行特征提取，以获得输入样本，再对神经网络进行学......
An image can be decomposed into the structural component and the geometric texturalcomponent.Based on this idea,an effic......
在对三角形网格多分辨率分析中,为了避免重新网格化的过程,基于小波变换,扩展了Lounsbery的方法。该算法直接对不规则网格进行渐进......
图象边缘检测的任务进就是检测和定位图象平面亮度的不连续,但夹杂在图象信号中的噪声,因其奇异性使得边缘检测成为一个既要保留边......
提出了一种基于小波变换的数字图像水印算法 .利用小波变换 (DWT)的基本原理 ,将二值图像水印加入到图像小波变换后细节子带中的较......
通过对R2上与Grushin算子联系的拟距离,构造齐次型空间上的正交小波分解.这些小波的支集是拟距离意义下的二进制正方形,对其进行研......
基于小波变换的多分辨分析功能，对有约束广义预测控制的预测和控制时域在小波域进行分块压缩，降低了约束维数，大大提高了计算效率.......
提出一种心音的特征提取和分类方法．用离散小波变换分解、重构产生信号的细节包络，进而用于提取特征，从预处理的信号中提取统计特性，作......
本文把通过方向多分辨分析构造的由一个函数生成的多频率小波推广到由有限个函数生成的多频率小波.给出由n2j1+j2个函数φ1,…,φn......
利用非均匀B样条小波的正交性、局部性和振动性,研究基于非均匀B样条小波分解的有理曲线的光顺算法.第一步,通过不同的节点选取方......
本文提出了一种基于小波变换的合成孔径雷达(SAR)图像相干斑消除滤波器.这种滤波器通过在小波细节子图像中减少小波分解系数的幅度......
本文从论述了镜像滤波器的性质,并在理论上给出了并证明了镜像滤波器成为收敛的小波条件.......
