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PCA
主成分分析 ( Principal Component Analysis , PCA )或者主元分析。是一种掌握事物主要矛盾的统计分析方法,它可以从多元事物中解析出主要影响因素,揭示事物的本质,简化复杂的问题。计算主成分的目的是将高维数据投影到较低维空间。给定 n 个变量的 m 个观察值,形成一个 n ′ m 的数据矩阵, n 通常比较大。对于一个由多个变量描述的复杂事物,人们难以认识,那么是否可以抓住事物主要方面进行重点分析呢?如果事物的主要方面刚好体现在几个主要变量上,我们只需要将这几个变量分离出来,进行详细分析。但是,在一般情况下,并不能直接找出这样的关键变量。这时我们可以用原有变量的线性组合来表示事物的主要方面, PCA 就是这样一种分析方法。(Principal component analysis (Principal Component Analysis, PCA) or PCA. Is a statistical method to grasp the principal contradiction of things, it can be resolved diverse things out the main factors, revealing the essence of things, simplifying complex problems. The purpose of calculating the main component of high-dimensional data is projected to a lower dimensional space. Given n variables of m observations, forming an n ' m of the data matrix, n is usually large. For a complex matters described by several variables, it is difficult to know, so if you can grab something to focus on key aspects of analysis? If the main aspects of things just reflected on several key variables, we only need to separate out these few variables, for detailed analysis. However, in general, does not directly identify this critical variables. Then we can represent the major aspects of things with a linear combination of the original variables, PCA is one such analysis.)
- 2021-01-28 21:48:40下载
- 积分:1
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upfile_2.4.3
多图片上交过程,程序的主要功能就是图片上传。可以一次上传多个文件。速度也相当的快哦。
(hand in the picture)
- 2013-05-31 08:35:19下载
- 积分:1
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SRM
SRM空间富模型隐写分析算法,选区高维特征,使用集成分类器进行训练(Spatial Rich Model Steganalysis Algorithms, Selection of High-Dimensional Features, Using Integrated Classifier for Training)
- 2021-03-30 16:09:09下载
- 积分:1
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log_edge
说明: 用log算子做边缘检测的matlab源程序(log Operators do edge detection Matlab source)
- 2006-04-05 16:46:03下载
- 积分:1
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image_processing
图像处理入门编程
包括动态跟踪和视频处理
有对应的任务指导书(image processing
include the mission book)
- 2018-03-29 00:52:33下载
- 积分:1
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ReadDICOM.tar
Read one DICOM file with vtk bib
- 2015-04-13 19:13:58下载
- 积分:1
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TestFrm
一个示波器的框架(the framework of an oscilloscope)
- 2004-08-26 11:28:15下载
- 积分:1
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interp
用于图象的复原处理,可以对多张同样角度拍摄的图片进行分析,得到清晰的放大图.
superresulution(Rehabilitation treatment for the image can be more than the same angle picture taken for analysis have been given clear Enlargement. superresulution)
- 2020-11-30 21:39:29下载
- 积分:1
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jingdianEZW
说明: 高光谱图像压缩中的ezw算法,实现了很好的压缩比(Hyperspectral image compression ezw algorithm to achieve a good compression ratio)
- 2010-04-11 15:03:47下载
- 积分:1
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ImagePro
本人研究生阶段做的项目,线结构光视觉传感器的标定中的激光光条中心的提取。
1、通过JPG、PCX、GIF解码方法,来打开BMP、JPG、PCX、GIF格式图像。
2、大津展之法阈值变换,效果较好。
3、三种细化方法,Rosenfold细化、Hildith细化、Pavlidis细化。
4、基于灰度重心法的全分辨率的激光光条中心亚像素坐标的提取。(Calibration )
- 2010-03-12 11:43:58下载
- 积分:1