区域生长法

大面积破损的基于样本块匹配的纹理合成修复图像(Large area damaged texture synthesis restoration image based on sample block matching)

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.)

使用vtk库开发的volume程序，主要用于建立多边形面片，用于演示三维体的算法。(Developed using VTK library volume procedures, set up primarily for polygon surfaces for the presentation of three-dimensional body algorithms.)

说明：  结构光光平面标定源码，注释详细，求出光平面在相机坐标系中的相对位置。(Structured light plane calibration source code, detailed comments, find the relative position of the light plane in the camera coordinate system.)

在我们的移动端开发中，需要用到折线图，本篇内容就是用flutter写的一个折线图例程。(In the development of our mobile terminal, we need to use the line chart. This article is a line chart routine written by flutter.)

说明：  图像的卡通纹理分解，适用于灰度图像，运行速度较快(The cartoon texture decomposition of image is suitable for grayscale image and runs fast)

医学图像处理，实现图像分割，一基于区域生长法；二基于最佳阈值分割(Medical image processing, and image segmentation, one based on region growing method two thresholding based on the best)

nca,近邻成分分析，距离度量学习里常用的。(nca)

说明：  高斯混合背景建模MATLAB代码，用于背景提取，获得前景(Gaussian mixture background modeling MATLAB code for background extraction, to obtain the foreground)

说明：  非均匀有理B样条 第2版.pdf NURBS理论经典书籍(The nurbs book(second edition) NURBS Theory Classic Books)