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Description: jaccobi迭代法和GS迭代法求解线性方程组，并有著名病态对称正定矩阵Hilbert矩阵的生成程序和其不同维数下，求解结果的对比作图-jaccobi iteration and GS iterative method for solving linear equations, and a well-known pathological symmetric positive definite matrix Hilbert matrix formation process and the different dimension, the results of the solution Comparative mapping
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Author: 高兵 |
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Description: SOR（超松弛）迭代发求解线性方程组问题，带有Hilbert矩阵生成程序和其不同维数下求解的结果对比作图-SOR (Overrelaxation) iteration made for solving linear equations, with Hilbert matrix formation process and the different dimensions of the results evaluated Comparative mapping
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Author: 高兵 |
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Description: 这是一个基于峰度的ICA算法，里面的ica_kurt.m是主文件，输入为待处理的观察信号，要求是矩阵形式，行数为所包含的分量数，列数为每一个分量包含的抽样点数。-This is a peak on the ICA algorithm inside ica_kurt.m is the main document, pending input signal observation demands matrix form, the number of firms covered by the weight of several listed a number for each component contained in the sample points.
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Author: 王斌 |
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Description: This toolbox was designed as a teaching aid, which matlab is particularly good for since source code is relatively legible and simple to modify. However, it is still reasonably fast if used with the supplied optimiser. However, if you really want to speed things up you should consider compiling the matrix composition routine for H into a mex function. Then again if you really want to speed things up you probably shouldn t be using matlab anyway... Get hold of a dedicated C program once you understand the algorithm.-This toolbox was designed as a teaching aid, which matlab is particularly good for since source code is relatively legible and simple to modify. However, it is still reasonably fast if used with the supplied optimiser. However, if you really want to speed things up you should consider compiling the matrix composition routine for H into a mex function. Then again if you really want to speed things up you probably shouldn t be using matlab anyway... Get hold of a dedicated C program once you understand the algorithm.
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Author: 孙荣超 |
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Description: 本文结合DCT变换的特性，利用分形的Peano一hilbert扫描曲线，对基于DCT变换的图像编码方法进行了研究，并提出了改进方法。主要工作分为两个部分: 一是在分块DCT基础上的改进。对分块后生成的各图像块矩阵，不直接作二维DCT变换，而是先进行扫描，使之重排成一维向量，再进行一维DCT变换，这样可以减少运算量。 其次是对层次余弦变换编码部分的改进。使用层次DCT变换与零树编码相结合的方法，并在扫描编码过程中，按Peano一hilbert扫描顺序进行编码。这样不仅可以减少“块效应”，而且可以加快编码速度。-this paper the characteristics of DCT, using fractal Peano a Hilbert scanning curve, the DCT-based image coding method for the study and improvement of methods. The work is divided into two main parts : First, the DCT block on the basis of improvements. Right after block production of the image block matrix, not for direct two-dimensional DCT, but first scan, so they line up in a heavy-dimensional vector and then a peacekeeping DCT, thus reducing the amount of computation. Secondly, the level of cosine transform coding some of the improvements. The use level of DCT and zero tree coding combination of methods, coding and scanning process, according to a Hilbert Peano code scanning sequence. This will not only reduce the "blocking effect" but we can speed up the coding speed.
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Author: lzy |
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Description: This a Bayesian ICA algorithm for the linear instantaneous mixing model with additive Gaussian noise [1]. The inference problem is solved by ML-II, i.e. the sources are found by integration over the source posterior and the noise covariance and mixing matrix are found by maximization of the marginal likelihood [1]. The sufficient statistics are estimated by either variational mean field theory with the linear response correction or by adaptive TAP mean field theory [2,3]. The mean field equations are solved by a belief propagation method [4] or sequential iteration. The computational complexity is N M^3, where N is the number of time samples and M the number of sources.
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Author: 陈互 |
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Description: 用matlab编写的，有限元三维梁单元的单元刚度矩阵计算程序，各节点6个自由度。-prepared by the three-dimensional finite element beam element of the element stiffness matrix calculation program, the 6-DOF nodes.
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Author: 王淑涛 |
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Description: 程序代码说明 P0401：用Prewitt算子检测图像的边缘 P0402：用不同σ值的LoG算子检测图像的边缘 P0403：用Canny算子检测图像的边缘 P0404：图像的阈值分割 P0405：用水线阈值法分割图像 P0406：对矩阵进行四叉树分解 P0407：将图像分为文字和非文字的两个类别 P0408：形态学梯度检测二值图像的边缘 P0409：形态学实例——从PCB图像中删除所有电流线，仅保留芯片对象-code P0401 Note : Prewitt operator to detect the edges in the image P0402 : different values of Getting operator to detect the edges in the image P0403 : Canny operator to detect the edges in the image P0404 : image thresholding segmentation P0405 : water line threshold method image segmentation P0406 : matrix Quadtree P0407 : images into text and non-text of the two categories P0408 : morphological gradient detection Binary Image Edge P0409 : morphology example-- Images from the PCB to remove all current lines, retaining only chip targets
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Author: tian |
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Description: 调用过程 CM = Confusion_matrix(train_predicts, train_targets) [combining_predicts, errorrate] = combining_NB(DP, test_targets, CM) DP，三维数组，(i,j,k)为第k个样本的DP矩阵 targets 为 0 1 2 -process called CM = Confusion_matrix (train_predicts, train_targets) [combining_predicts, errorrate] = combining_NB (DP, test_targets, CM) DP, three-dimensional array (i, j, k) for the k samples of DP matrix targets for 0 1 2
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Description: 极小边际熵等价于叉四阶累积量的平方和最小。通过迭代使四阶累积矩阵对角化，实现交叉四阶累积量的平方和的极小化。他是语音识别的重要预处理算法-minimum entropy equivalent to the marginal four bands fork cumulative amount of square and smallest. Through iterative four bands so that the cumulative matrix diagonalization, four bands to achieve cross-cumulative amount of square and the minimization. He is an important voice recognition algorithm pretreatment
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Description: 求取大型稀疏矩阵的特征根和特征向量，适用于matlab6.1以上的环境-strike a large sparse matrix eigenvalue and eigenvalues above applies to the environment matlab6.1
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Author: 白晓明 |
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Description: The transformation parameters are specified by the user by editing the
values of the rotation, scale (x and y), and shear (x and y). The
translation is not icluded because it can be easily (normalized or) removed from the image by
subtracting the shape cetroid.
The affine matrix and the affinr transformation are computed using Matlab Image Processing Toolbox
functions: maketform and imtransform. So this program is only demonstrates and facilitates the computation and the applying of these functions to a 2-D image. -The transformation parameters are specified by the user by editing the values of the rotation, scale (x and y), and shear (x and y). The translation is not icluded because it can be easily (normalized or) removed from the image by subtracting the shape cetroid. The affine matrix and the affinr transformation are computed using Matlab Image Processing Toolbox functions: maketform and imtransform. So this program is only demonstrates and facilitates the computation and the applying of these functions to a 2-D image.
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Author: gz |
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Description: MATLAB是一套用于科学计算的可视化高性能语言与软件环境。它集数值分析、矩阵运算、信号处理和图形显示于一体，构成了一个界面友好的用户环境。它的信号处理工具箱包含了各种经典的和现代的数字信号处理技术，是一个非常优秀的算法研究与辅助设计的工具。在设计数字滤波器时，通常采用MATLAB来进行辅助设计和仿真。
（2）FIR滤波器的MATLAB设计
下面以设计线性相位FIR滤波器为例介绍具体的设计方法。
线性相位FIR滤波器通常采用窗函数法设计。窗函数法设-MATLAB is a set of scientific computing for the high-performance visualization language and software environment. It combines numerical analysis, matrix computation, signal processing and integrated graphics, constituting a friendly user interface environment. The Signal Processing Toolbox includes a variety of classic and modern digital signal processing technology, is a very good algorithm research and aided design tool. The digital filter design, which are normally used MATLAB to-aided design and simulation. (2) FIR filter design MATLAB below to design linear phase FIR filter example on the specific design methods. Linear phase FIR filter normally used window function design. Window functions located
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Author: 李红 |
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Description: 基本遗传算法求解TSP问题，只需给出城市间距离矩阵和初始参数即可进行计算。-basic genetic algorithm for TSP, is only inter-city distance matrix and the initial parameters can be calculated.
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Author: 时 |
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Description: 实现雅可比叠代算法
在matlab中
输入矩阵A,b,
初值x
调用该函数
得到结果-achieve Jacobi iterative algorithm in Matlab input matrix A, b, x initial function to be called the results
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Author: 陆营 |
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Description: 在VB里计算矩阵，线性方程组的控件。与matlab类似，包含了matlab的６００多个函数。-in VB calculate matrix and linear equations of control. Similar with Matlab, includes more than 600 of Matlab functions.
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Author: 而且 |
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Description: 用滑动窗口中图像的灰度共生矩阵进行简单的2类纹理的分割.-sliding window of the gray image symbiotic matrix simple two types of texture segmentation.
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Author: 夏玉 |
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Description: 利用矩阵的奇异值分解压缩图像，先将图像分块，对各块中的每个对应象素内积得到相关矩阵A，然后对A进行奇异值分解，选择n（n<N）个较大的特征值对应的特征向量，利用该向量与各块图像内积来压缩和恢复图像-matrix of singular value decomposition image compression, image first block of the block of each pixel corresponding to be associated with the plot matrix A, and then A singular value decomposition, the choice of n (4; N) 000 eigenvalues larger the corresponding eigenvector, the use of the Vector with the block images within the plot to image compression and restoration
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Author: 王志气 |
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Description: 针对C程序的特点，给出将之移植到VC集成环境下的技术，对一个常用程序集实施了大规模的改写，并提供了C++数组和矩阵模板类，对C程序进行面向对象的封装。
CH1.H-CH15.H改写自徐士良《C常用算法程序集[M]》清华大学出版社（1996.11），第1到第15章，即数值计算部分的所有内容。
AM.H 数组、矩阵类的最初实现
CAM.H 双精度型数组、矩阵类
TAM.H 数组、矩阵模板类
Matrix.h 双精度型矩阵类，数组类请用标准模板库的valarray类
TMatrix.h 矩阵模板类，数组类请用标准模板库的valarray类
这两者配合slice技术使用，可以得到极大的灵活性，标准模板库对效率也是做过优化的。
C++用作数值计算的解决方案包括Matlab数学库的调用，用Matlab、OpenGL实现数-against C program features is to be transplanted to VC integrated technical environment, a procedure commonly used to collect a large-scale rewriting, and to provide an array of C and matrix template category, the C Programming Object-Oriented Packaging. CH1.H- CH15.H rewritten since XU Shi-liang "C algorithms commonly used procedures set [M]" Qinghua University Press (1 996.11), to a Chapter 15, that is part of the numerical calculation of all content. AM.H array matrices CAM.H the first to achieve double-precision array matrices TAM.H array matrix template category Matrix.h double-precision matrix category, array category please use standard template library valarray category TMatrix.h matrix template category, array category please use standard templates for the two categorie
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Author: 苗嘉 |
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Description: MATLAB, computing matrix by QR
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Author: 一个人 |
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