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特征选择与提取zch
- 自编的用于图像特征提取的源程序,解压后直接运行就ok了-writing for Feature Extraction source, unpacked directly ok on the run
LDA
- 线性判别分析(LDA)用于特征选择,可以对数据集或者图像提取有用特征,用于分类或者聚类等机器学习应用中-Linear Discriminant Analysis (LDA) for feature selection, application in dataset or image feature extraction, for classification or clustering applications in machine learning
featureselection
- 特征选择方法,matlab实现增 l减 r法 顺序后退法 SFFS 特征选择 顺序前进法特征选择-feature selection
kmeans-image-segmentation
- K-meansK均值聚类在无监督的情况下选择图像特征的算法-K-meansK means clustering in the case of unsupervised image feature selection algorithm
zifushibie
- 有数字1和2的图片各四十张,利用mat lab读取图片并将其二值化,得到只由0和1表示的矩阵,根据数字的不同特征,选择两个特征值,用来对分类器进行训练,最后用剩下的5个1和5个2来进行测试,看分类器是否可以正确的对数据进行分类。-Figures 1 and 2 pictures of the 40, using mat lab picture and secondly, the value of reading, and received only by 0 and 1, said matrix
KLtransform
- (1)应用9×9的窗口对上述图象进行随机抽样,共抽样200块子图象; (2)将所有子图象按列相接变成一个81维的行向量; (3)对所有200个行向量进行KL变换,求出其对应的协方差矩阵的特征向量和特征值,按降序排列特征值以及所对应的特征向量; (4)选择前40个最大特征值所对应的特征向量作为主元,将原图象块向这40个特征向量上投影,所获得的投影系数就是这个子块的特征向量。 (5)求出所有子块的特征向量。 -(1) the application of 9 × 9 window
tezhengdian
- 上传文件中包括以下文件:1特征点的选择代码段;2特征点的提取代码段;代码编写使用了matlab语言,该文件对指纹处理有帮助!-good
xinxishang
- :将信息论中熵的概念应用到特征选择中,定义了两种信息测度评价特征——误差熵和混叠熵,然后阐述了两种定义的不 用物理意义,分析了计算熵中最关键的区间划分问题,并提出一种较好的区间划分方法。-: The concept of entropy in information theory applied to feature selection, the definition of information measure evaluation of two features- error entro
SVM_Finger
- 指纹图像的质量测量与评价,在指纹图像分割、增强及指纹匹配等环节都有重要应用. 同时,指纹图像的质量分类,对指纹识别算法的适用性研究也有重要意义. 本文提出一种基于支持向量机的指纹图像质量分类方法.该方法选择梯度、Gabor特征、方向对比度等指标,利用支持向量机有效实现指纹图像质量分类. 并采用少类样本合成过采样技术( SMOTE)降低指纹图像质量好坏的类别不平衡问题对分类的影响. 理论分析和实验结果都表明该方法能够较为有效地提高指纹图像质量分类的正确率.-Fingerprint Image Qu
ASurveyofFeatureSelection
- 本文总结并提出了较为完备的特征提取定义。根据特征子集形成过程将特征选择分为穷举式、启发式和随机式三类 根据特征评价标准将特征选择分为距离浏度、信息测度、相关性浏度、一致性测度和分类器错误率五类。通过分析特征选择的影响因素,提出了选择特征、选择方法应该遵循的原则。 -This paper analyzes and summarizes the previous definition of feature selection, and then introduces a selfcontaine
10
- 2D图像配准,基于特征点算法。跟图配准图选择的3个特征点进行图像配准。-2D image registration algorithm based on feature points.
ati
- 邻域粗糙集在轮对踏面缺陷图像特征选择的应用-Neighborhood rough sets in wheel tread defects application image feature selection
pluslr
- 顺序前进法特征选择,顺序后退法特征选择计算正确率-Sequential forward feature selection method, the sequence backward feature selection method to calculate the correct rate
A-Survey-of-Feature-Selection
- 对特征选择方法的发展历史和现状进行了跨学科的广泛调研,在此基础上总结提出了通用的方法定义和算法流程框架-A unifring approach to the definition of the feature selection problem and corresponding algorithm design framework are proposed based on a complete survey of a wide range of interdisciplinary res
Oil-spill-detection
- 基于SAR的溢油检测算法,对特征提取并进行特征选择。-Oil spill detection algorithm based on SAR, the feature extraction and feature selection.
Relief-feature-selection
- Relief 特征选择算法matlab实现-Relief feature selection
2-separability-based-feature-s
- 2快速separability-based特征选择方法highdimensional遥感图像分类模式识别_guo_pattrec 41(8)1670 - 1670 1670 -2 A fast separability-based feature selection method for highdimensional remotely-sensed image classification Pattern Recognition 41 (8) 1670-1679 2008
FEAST-v1.1.1
- 特征选择matlab程序, 该程序由多种特征选择算法组成,可根据需要进行选择。-Feature selection matlab program, which composed by a variety of feature selection algorithm can be selected according to need.
code-Feature-Selection-using-Matlab
- 主要完成图像特征出提取,包括5个特征选择算法:SFS,SBS,SFBS-Descr iption The DEMO includes 5 feature selection algorithms: Sequential Forward Selection (SFS) Sequential Floating Forward Selection (SFFS) Sequential Backward Selection (SBS) Sequential Floating Bac
SVMRFE
- 特征选择算法,防止分类结果出现过拟合,提前对多维的特征向量进行选择筛选(A feature selection algorithm)