[波变换] zishiying50hz
由仿真结果时域和频域图可以看出，工频50Hz干扰信号很好被滤除掉，说明所设计的自适应滤波器效果较好。
It can be seen by the domain and frequency domain simulation results in Figure, the frequency 50 Hz interference signals very well be eliminated, the design of the adaptive filter is better. (2012-04-12, matlab, 1KB, 下载16次)
[波变换] MATLAB-wavelet
MATLAB实现小波变换经典程序，包括采用多孔trous算法实现小波变换、基于小波消噪的雷达回波检测、小波插值与小波构造、小波滤波器构造和消噪程序、小波谱分析mallat算法经典程序、小波图像重构 Matlab 程序等等
MATLAB wavelet transform classic program, including the use of undecimated wavelet transform algorithm to achieve the wavelet transform, the radar echo detection based on wavelet denoising, wavelet interpolation and wavelet construction, construction and de-noising of the wavelet filter program, a small spectral analysis mallatclassic algorithm procedures, wavelet image reconstruction Matlab programalgorithm (2012-03-13, matlab, 12KB, 下载50次)
[波变换] Examples-of-wavelet-analysis
全文介绍了小波变换的基本理论，并介绍了一些常用的小波函数，它们的主要性质包括紧支集长度、滤波器长度、对称性、消失矩等，都做了简要的说明。在不同的应用场合，各个小波函数各有利弊。
Text describes the basic theory of wavelet transform, and describes some of the commonly used wavelet function, their main properties include compactly supported length, filter length, symmetry, vanishing moments, have a brief description. In different applications, advantages and disadvantages of each wavelet function. (2011-10-17, WORD, 1548KB, 下载11次)
[波变换] Wavelet-learning-materials
从数学的角度讲，小波是构造函数空间正交基的基本单元，是在能量有限空间L2(R) 上满足允许条件的函数，这样认识小波需要L2(R) 空间的基础知识，特别是内积空间中空间分解、函数变换等的基础知识。
从信号处理的角度讲，小波(变换)是强有力的时频分析(处理)工具，是在克服傅立叶变换缺点的基础上发展而来的，所以从信号处理的角度认识小波，需要傅立叶变换、傅立叶级数、滤波器等的基础知识。
From the mathematical point of view, is to construct a wavelet orthogonal basis function space the basic unit of energy is limited in space L2 (R) function to meet the permit conditions, such wavelets need to know L2 (R) space for the basics, especially in the inner product space in the space decomposition, such as the basics of function transformation.
From the perspective of signal processing, wavelet (transform) is a powerful time-frequency analysis (processing) tools, is to overcome the shortcomings of the Fourier transform on the basis of evolved, so from the perspective of wavelet signal processing, need to Fourier transform, Fourier series, filters and other basics.
(2011-10-17, PPT, 733KB, 下载14次)
[波变换] Extracted-from-the-ECG-signal-
这篇关于从心电信号提取呼吸信号的调查，一共介绍了三种方法，即：频率提取，滤波器滤波，小波变换，三种方法。
This extract on the respiratory signal from ECG investigation, presented a total of three methods, namely: the frequency extraction filter filtering, wavelet transform, three ways. (2011-09-21, matlab, 500KB, 下载114次)
[波变换] ECG
心电信号分析
（1）设计滤波器，实现对心电信号的噪声抑制和基线纠漂。
（2）时域分析：R波检测算法与实现.
（3）功率谱分析：对消噪后的信号进行功率谱分析。要求计算信号的功率谱，功率谱峰值，峰值频率。
ECG Analysis (1) design filters to achieve noise suppression of ECG and baseline drift correction. (2) time-domain analysis: R-wave detection algorithm and implementation (3) The power spectrum analysis: noise cancellation signal after the power spectrum analysis. Require calculation of the signal power spectrum, peak power spectrum, peak frequency. (2011-07-13, matlab, 2KB, 下载245次)
[波变换] GaborFilter
利用Gabor滤波器提取图像纹理特征，用于图像分类模式识别
Extract the texture feature using Gabor filter/wavelet. You should first generate cell array G, which is a set of kernels in freq domain, then pass G and the image to the function GABORCONV. (2011-04-10, matlab, 3KB, 下载240次)
[波变换] xiaobo
本书全面系统介绍了小波分析的基本理论和最新研究成果，重点介绍小波分析的应用成果，并通过软件实现来检验应用效果。全书分为三篇：第一篇是小波理论，包含8章内容，小波分析的发展历史及文献综述、准备知识、多分辨分析与共轭滤波器、连续小波变换、最佳小波基的构造及算法、二维母小波的构造、框架与样条小波理论、时间----频率分析；第二篇是小波应用，包含12章内容，详细介绍了小波分析在图象压缩、流体力学、工业CT、故障诊断、语音分割、数学物理、地球物理勘探、医学细胞识别、线性系统、神经网络等方面的应用；第三篇是小波软件，将第一篇和第二篇的重要算法用C语言实现，且全部在微机上调试通过，读者可直接应用或稍加修改即见成效。
This book systematically introduces the basic theory of wavelet analysis and the latest research results, focusing on the application of wavelet analysis results and applications through the software to test results. The book is divided into three: first is the wavelet theory, contains 8 chapters, the history of development of wavelet analysis and literature review, preparation of knowledge, multi-resolution analysis of the conjugate filter, continuous wavelet transform, the best wavelet algorithm for the construction and two-dimensional structure of the mother wavelet, frame and spline wavelet theory, time frequency analysis---- second is the wavelet applications, contains 12 chapters, detailing the wavelet analysis in image compression, fluid mechanics, industrial CT , fault diagnosis, speech segmentation, mathematical physics, geophysical exploration, medical cell recognition, linear systems, neural networks and other applications third is the wavelet software, the importance of t (2010-12-31, Visual C++, 13364KB, 下载73次)
[波变换] kuaisujiance
提出一种结合小波变换与共现矩阵用于纺织品图像缺陷检测的方法。首先将灰度图像分解成子带 然
后将纹理图像分割成互不重叠的子窗口, 提取共现特征 最后用无缺陷样品训练的M ahalanob is分类器将每一子
窗口划分为缺陷的和无缺陷的。应用该算法进行实际工厂环境中的纺织品缺陷检测。实验结果表明, 集中处理
具有强判决能力的某一频带提高了检测性能, 也改善了计算效率。
Propose a wavelet transform and co-occurrence matrix for the textile image defect detection method. First, the gray image is decomposed into sub-band and then the texture image into non-overlapping sub-windows were now feature extraction Finally, defect-free samples of M ahalanob is trained classifier to each child window is divided into defective and non- defects. Practical application of the algorithm textile factory defect detection in the environment. Experimental results show that the decision to focus with a strong ability to improve the detection performance of a band, but also improve the computation efficiency. (2010-12-18, PDF, 224KB, 下载38次)
[波变换] gabor
gabor二维滤波器，用与表情识别！非常好用！做人脸识别，表情识别的朋友可以下载！
Facial expression recognition based on Gabor wavelets tranform!It is very useful to the people who research facial expression ! (2010-06-23, matlab, 1KB, 下载263次)
[波变换] 50
多媒体技术的发展和视觉信息的飞速膨胀迫切需要对视觉信息资源的有效管理和检索。由此，基于内容的图像和视频检索技术得到了越来越多的重视，成为了多媒体信息检索和图像处理领域中的重要研究方向。CBIR技术将对大规模图像信息的管理和访问提供有力支持。
本文这种介绍了内容图像检索的灰度特征实现方法，具有理论意义和实际应用价值。针对基于内容图像检索技术进行了研究，介绍了其研究现状和关键技术，讨论了其技术瓶颈和发展趋势。共生矩阵法，是对图像的所有像元进行统计调查，以便描述其灰度分布的一种方法。分析了这种基于广义图像灰度共生矩阵的图像检索方法，该方法首先将原图像作平滑处理得到平滑图像，然后将原图像和平滑图像组合得到广义图像灰度共生矩阵，提取该矩阵的统计特征量，最后将该统计量组成归一化向量用以检索。
实验结果表明，本方法的效果要优于单纯的灰度共生矩阵法。在对相似图像检索时，该算法与基于共生矩阵的经典算法相当，在面临同一图像大小显著改变或发生旋转的情况下，该算法明显优于经典算法。相比较而言，该算法提高了检索的有效性。
The development of multimedia technology and the expansion of visual information，which cries for the effective management and retrieval methods of visual information. Thus, the image and video searching technology based on content is gaining more and more attention to become a multimedia information retrieval and image processing in the field of important research direction. The technology of CBIR provides effective supports for the management and access of extensive image information.
This paper introduced the content of the image retrieval method characteristics of gray, with theoretical and practical value. This paper does an extensive and in-depth study of technology based on content image retrieval to, presenting their research status and key technologies, discussing its development trends and technological bottlenecks. Co-occurrence matrix of all the pixel image survey has been conducted in order to describe a method of distribution of gray. This paper analyses this broad-based (2009-10-21, matlab, 557KB, 下载102次)
[波变换] orthogonalwavelettransform
介绍了传统线谱增强器(ALE)结构,分析了ALE的工作原理。ALE线谱增强的原因是降低了基本
输入和参考输入中的噪声相关性,由于对参考输入的权系数调整无法对噪声进行合理估计,正弦信号得到增强。
Introduced the traditional linear spectrum enhancer (ALE) structure, an analysis of the working principle of ALE. ALE-ray spectrum is due to enhance the basic input and reduces the noise reference input relevance, because of the reference input to adjust the weight coefficients of the noise can not be reasonably estimated, enhanced sinusoidal signal. (2009-08-12, matlab, 447KB, 下载59次)
[波变换] ConstructWaveBaseFunction
紧支撑小波基的构造。
以Daubechies小波滤波器系数为例，推导出小波函数及尺度函数，并画出其图像.
void Convolution(double* pShortData, int nShort, double* pLongData, int nLong)
int CalcScaleFunction(double* pOutData)
int CalcWaveletFunction(double* pOutData)
Convolution()不是通用的离散卷积代码，而是简单地实现了后面两个函数需要的离散卷积，它要求输入的前一个数组长度小于后一数组长度，而且卷积结果就直接覆盖存储在后一数组中。CalcScaleFunction()计算尺度函数，CalcWaveletFunction()计算小波函数。
Compactly supported wavelet bases constructed. To Daubechies wavelet filter coefficients as an example, the derived wavelet function and scaling function, and draw their images. Void Convolution (double* pShortData, int nShort, double* pLongData, int nLong) int CalcScaleFunction (double* pOutData) int CalcWaveletFunction ( double* pOutData) Convolution () instead of generic discrete convolution code, but simply the realization of a function behind the need for two discrete convolution, which requires input before an array length is less than the array length of the latter, but the result of convolution directly covered by the latter is stored in the array. CalcScaleFunction () calculated scaling function, CalcWaveletFunction () calculation of wavelet function. (2008-11-21, C/C++, 171KB, 下载50次)
[波变换] WAVELETONDSP
由于小波变换具有良好的时频分析特性，已经广泛应用于各种信号分析领域。由于小波变换算法的复杂性，如果直接计算小波变换，所需内存较大，耗时较长。尽管当今处理器芯片运算速度得到了大幅度的提高，但仍然在实时性上不能满足要求。为了简化计算过程，人们相继设计了一系列的快速算法来计算小波变换，以降低其运算次数。
Since the wavelet transform has good time-frequency analysis features, has been widely used in various fields of signal analysis. Wavelet transform algorithm as a result of the complexity, if the direct calculation of wavelet transform, the larger memory requirements, a longer time-consuming. Despite the computational speed of today (2008-10-15, C++, 178KB, 下载43次)
[波变换] Trousxiaobo-fusion
基于Trous小波算法的影像融合由于存在抽取和插值运算，其结果存在一定的相位失真Trous小波算法通过有限滤波器内插近似实现对影像数据的无抽取离散小波变换较好地解决了上述问题，在阐述影像数据融合原理的基础上给出了基于Trous小波变换的影像融合处理方法和过程。
Trous wavelet algorithm based on image fusion because of extraction and interpolation operations, the result there is a certain degree of phase distortion trous wavelet algorithm through limited interpolation filter approximation of the image data to achieve without taking discrete wavelet transform can solve the above problems, Before going into the image data fusion based on the principle of give trous wavelet transform based image fusion methods and the process of treatment. (2008-09-01, Others, 111KB, 下载47次)
[波变换] compressVLSI
高速图像压缩编码器的VLSI结构设计研究.kdh 相当有水平的博士论文。里面详细讲到了如何设计小波变换VLSI结构。并对verilog hdl设计结构进行了评估
High-speed image compression encoder the structural design of VLSI Research. Kdh quite the level of doctoral dissertation. Which describes in detail how to design the structure of wavelet transform VLSI. Verilog hdl design and structure of the assessment (2008-06-22, VHDL, 1693KB, 下载135次)
[波变换] Image_Processing
数字图像获取, 处理及实践应用源代码——很多有用的图像处理的源代码：图像显示（原图、抖动），图像增强（灰度变换、直方图均衡、多种滤波器、伪彩色增强等），图像复原（运动模糊、逆滤波等等），图像变换（傅立叶变换、快速傅立叶变换、离散余弦变换、沃尔什变换、霍特林变换、小波变换、小波反变换），图像编码（霍夫曼编码、香浓-费诺编码、算术编码、位平面编码等），图像识别。
Digital image acquisition, processing and practical application source code- a lot of useful image processing source code: Image Display (image, jitter), image enhancement (gray-scale transformation, histogram equalization, multi-filter, pseudo-color enhancement, etc. ), image restoration (motion blur, inverse filtering, etc.), image transform (Fourier transform, fast Fourier transform, discrete cosine transform, Walsh transform, Hotelling transform, wavelet transform, wavelet transform), image coding (Huffman coding, Shannon- Fenno coding, arithmetic coding, bit plane coding, etc.), image recognition. (2007-10-15, Visual C++, 5063KB, 下载3146次)
[波变换] wavelet_edge
％ 该算法采用的是样条小波，为了更好的检测边缘，用a tuous 算法代替了mallat算法。
％ 该算法和mallat快速算法主要区别：
％ 1 a tuous 算法不需要抽取偶数样本，所以奇异检测定位更准确，相应的重构是不需要插零。
％ 2 a tuous 算法需要对滤波器进行伸缩。
The algorithm is based on spline wavelets, in order to better detect the edge of a tuous algorithm used in place of the Mallat algorithm. Of the fast algorithm of Mallat algorithm and the main difference: 1 a tuous algorithm does not require even-numbered samples collected, so singular positioning more accurate detection, the corresponding reconstruction is no need for interpolation of zero. 2 a tuous algorithm needs to filter telescopic. (2007-03-24, matlab, 1KB, 下载116次)
[波变换] ch09_JPEG2000
从子带编码到小波编码
子带编码
多分辨率分析
滤波器组与多分辨率
从子带编码到小波编码
小波分解图像方法
失真的度量方法
JPEG2000介绍
from subband coding to wavelet encoding subband coding multiresolution analysis filters with a resolution from the subband coding of wavelet image coding wavelet decomposition method of measuring distortion introduced JPEG2000 (2006-03-11, PDF, 88KB, 下载50次)
[波变换] signal468
本书是研究生数字信号处理提高课的教材。全书共13章，涵盖了“现代信号处理”中时频分析、滤波器组及小波变换这三大知识体系。编写中，力求注重理论和应用相结合，力求有利于数学和读者的自学，力求较为全面地反映这三个知识体系的主要内容。本书附光盘一张，包括了100余个用MATLAB6.5编写的程序和一些数据文件。这些程序概括了书中所涉及的绝大部分例题和插图，运行这些程序即可重现这些例题的结果和相应的插图，有利于帮助读者理解书中较为复杂的理论内容。
the book was a graduate of digital signal processing to improve the teaching lesson. The book has 13 chapters, covering "modern signal processing" time-frequency analysis, filters and wavelet transform these three knowledge systems. In preparation, sought to focus on theory and application integration, seeks to mathematics and the readers to learn, to seek to reflect a more comprehensive system of knowledge that the three main elements. The book : a CD-ROM, including more than 100 Matlab6.5 prepared with the procedures and some data files. A summary of these procedures involved in the book most of the examples and illustrations, run these procedures can be retained these examples of the results and the corresponding illustrations, will help readers understand the book more comple (2005-06-06, matlab, 290KB, 下载951次)