stokes

说明：  计算极大似然值copula，matlab代码(Calculate the maximum likelihood value)

说明：  帮助解决数学问题，同时内部包含诸多神经网络训练文件帮助参考(Test the simple function of the Mathmethetic.)

棋盘格 棋盘格标定图纸27X27

说明：  社团分类，包括gn算法分类和cpm算法分类，包内还有训练数据可供联系。(community detection)

A book that explains tool Ms Flex Grid in visual Basic 6

说明：  基于高斯球的3d点云精简，PCA主元分析法求法向量(3D point cloud simplification based on Gaussian sphere)

PID仿真，通过调节参数可改变输出，加深对pid的理解(PID simulation, through adjusting parameters can change the output, deepen the understanding of PID)

大地电磁二维正演程序，在二维平面对介质进行网格剖分，然后利用有限元进行大地电磁二维正演(Two-dimensional magnetotelluric forward modeling)

在遥感应用领域，植被指数已广泛用来定性和定量评价植被覆盖及其生长活力。由于植被光谱表现为植被、土壤亮度、环境影响、阴影、土壤颜色和湿度复杂混合反应，而且受大气空间―时相变化的影响，因此植被指数没有一个普遍的值，其研究经常表明不同的结果。-in the field of remote sensing applications, vegetation index has been widely used for the qualitative and quantitative evaluation of the growth of vegetation cover and its vitality. As the spectral performance of the vegetation cover, soil brightness, environmental impact, shadow, color and soil moisture complex mixed reaction and by the atmospheric space-phase change, vegetation index therefore not a universal value, its regular show different results.

通过计算方差，确定划分坐标轴，最后，将点云划分到一个个格子中，这样的好处在于可以将噪点和有效点分别存储于不同的格子中，方便进行去噪。(k-d tree create;By calculating the variance, the coordinate axis is determined. Finally, the point cloud is divided into a number of lattices. The advantage is that the noise and the effective points can be stored in the different lattice, so that the noise can be de-noised conveniently.)