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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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hessian_frangi_filter_version2a
基于Hessian矩阵增强提取二维或三维医学图像中的血管(Vessel enhancement and extraction from 2D or 3D medical images)
- 2018-04-12 13:43:57下载
- 积分：1
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ImageSegmentationAlgorithmBasedonTwodimensionalHis
基于二维直方图最大熵阈值法的图像分割算法，可选取较好的阈值实现图像分割(failed to translate)
- 2009-05-27 10:16:19下载
- 积分：1
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双树复小波分解+特征提取+输出Excel
说明： 运行小波变换对图像进行处理分析，包括去噪纹理提取等(Running wavelet transform to process and analyze image, including denoising texture extraction, etc.)
- 2019-02-03 14:21:05下载
- 积分：1
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均值滤波
说明： matlab实现均值滤波，中值滤波，同时操作(Matlab to achieve mean filtering, median filtering)
- 2021-03-29 09:44:09下载
- 积分：1
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feixianxing
这是我们非线性课程的一次作业，有分岔图，蛛网图，庞加莱截面，希望对大家有用。(This is our first non-linear operation of the curriculum, there is bifurcation diagram, spider diagram, Poincare section, in the hope that useful to everyone.)
- 2020-11-03 20:19:52下载
- 积分：1
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彩色图像的边缘检测
说明： 本人依据一篇文献介绍的方法编的彩色图像边缘检测程序，其效果要由于一般的方法。(literature on the basis of a methodology for the Color Edge Detection procedures, the effect due to the general approach.)
- 2005-10-28 09:36:20下载
- 积分：1
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FrequencyImage
说明： 包括如何将几百个*.txt的文件读入程序，并通过快速傅立叶变换进行数据处理画出图像。(including how to hundreds*. txt file into the process, and through the fast Fourier transform data processing paint images.)
- 2006-03-15 08:25:22下载
- 积分：1
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Threedimension
双目摄像机标定程序，给出摄像机内外参数，并完成三维立体重建。(Binocular camera calibration procedures, given internal and external camera parameters, and complete the three-dimensional reconstruction.)
- 2009-10-12 21:08:08下载
- 积分：1
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二值图开运算
说明： 将原图二值化处理后，对二值图像进行腐蚀处理去掉图中主体以外的噪点或小斑迹(After binarization of the original image, the binary image is corroded to remove the noise or small spots outside the main body of the image)
- 2020-01-12 16:58:09下载
- 积分：1
