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FAST-ICA
1、对观测数据进行中心化,;
2、使它的均值为0,对数据进行白化—>Z;
3、选择需要估计的分量的个数m,设置迭代次数p<-1
4、选择一个初始权矢量(随机的W,使其维数为Z的行向量个数);
5、利用迭代W(i,p)=mean(z(i,:).*(tanh((temp) *z)))-(mean(1-(tanh((temp)) *z).^2)).*temp(i,1)来学习W (这个公式是用来逼近负熵的)
6、用对称正交法处理下W
7、归一化W(:,p)=W(:,p)/norm(W(:,p))
8、若W不收敛,返回第5步
9、令p=p+1,若p小于等于m,返回第4步
剩下的应该都能看懂了
基本就是基于负熵最大的快速独立分量分析算法(1, on the center of the observation data, 2, making a mean of 0, the data to whitening-> Z 3, select the number of components to be estimated m, setting the number of iterations p < -1 4, select an initial weight vector (random W, so that the Z dimension of the row vectors of numbers) 5, the use of iteration W (i, p) = mean (z (i, :).* (tanh ((temp) ' * z)))- (mean (1- (tanh ((temp)) ' * z). ^ 2)).* temp (i, 1) to learn W (This formula is used to approximate the negative entropy) 6 with symmetric orthogonal treatments W 7, normalized W (:, p) = W (:, p)/norm (W (:, p)) 8, if W does not converge, return to step 5 9 , so that p = p+1, if p less than or equal m, return to step 4 should be able to read the rest of the basic is based on negative entropy of the largest fast independent component analysis algorithm)
- 2013-06-27 15:39:00下载
- 积分:1
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PDEs__MATLAB
介绍matlab下求解偏微分方程的函数和用法(Introduction matlab function for solving partial differential equations and usage)
- 2012-11-03 14:11:07下载
- 积分:1
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test3
利用Artoolkit实现了虚拟现实的算法,VS2008下测试通过(Use Artoolkit algorithm to achieve a virtual reality, VS2008 under test)
- 2013-12-12 12:39:48下载
- 积分:1
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alpha稳定分布噪声的matlab实现
alpha稳定分布噪声的matlab实现(alpha stable distribution noise matlab implementation)
- 2021-04-06 08:59:02下载
- 积分:1
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Image-feature-extraction
一种改进的基于蚁群算法的图像边缘检测文献,前沿论文(ant colony system,matlab)
- 2012-04-17 15:10:39下载
- 积分:1
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RANSAC_plane_single
基于matlab的RANSAC算法,主要用来拟合二维直线,同时选出非直线的点用于后续曲线拟合。(The RANSAC algorithm based on MATLAB is used to fit two dimensional lines, and the point of non straight line is selected for the subsequent curve fitting.)
- 2017-12-14 10:47:23下载
- 积分:1
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JAFFE
数据库是由10个人的7种正面表情组成的213幅灰度图像,图像是以大小为256256的8位灰度级存储的,格式为.tiff型,平均每个人每种表情有2到4张。( the JAFFE database[11] which is
composed of 213 images of female facial expression
corresponding to 10 distinct subjects. Each image is stored at a
resolution of 256×256 pixels and 8-bit gray level. Each subject
in the database is represented with 7 categories of expression
(angry, disgust, fear, neutral, sadness, happiness and surprise). )
- 2012-12-20 10:31:00下载
- 积分:1
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plotHermiteGaussianBeams
根据厄米高斯光束的振幅分布物理公式来画厄米高斯光束的强度分布图(plot the intensity distribution of the HermiteGaussian Beams based on the physical formulars of the Hermite-Gaussian Beams )
- 2012-09-23 03:04:09下载
- 积分:1
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pga相位梯度法
说明: 基于相位梯度法PGA的 Matlab 估计相位误差 估计多普勒中心(Estimation of Phase Error and Doppler Center by PGA MATLAB)
- 2019-06-06 17:05:54下载
- 积分:1
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retinex by two Bilateral Filters
说明: 基于双边滤波的retinex算法,暗光图像增强,有效去噪、提高对比度、去光晕;含论文和讲解PPT、实例代码(Retinex algorithm based on bilateral filtering can enhance dark image, effectively denoise, improve contrast and eliminate halo)
- 2021-01-27 15:58:40下载
- 积分:1