patchwork

势场法路径规划matlab程序，本程序完整的实现了势场法。内有详细注解。(Potential Field Path Planning matlab procedures, the procedures for the complete implementation of the potential field method. There are detailed notes.)

PCA的步骤： 1 先将数据中心化； 2 求得的协方差矩阵； 3 求出协方差矩阵的特征值与特征向量； 4 将特征值与特征向量进行排序； 5 根据要降维的维数d’,求得要降维的投影方向； 6 求出降维后的数据； (PCA steps: 1 of the first data center 2 covariance matrix obtained 3 obtained covariance matrix eigenvalues and eigenvectors 4 eigenvalues and eigenvectors will be sorted 5 according to the dimension of dimension reduction d ' , seek to reduce the dimension projection direction 6, the data obtained after the dimensionality reduction )

普通（硬）－ 均值聚类（HCM）算法是经典的硬聚类算法之一，能够对超椭球状的 数据进行分类(Ordinary (hard)- means clustering (HCM) algorithm is one of the classic hard-clustering algorithm, super-ellipsoid can sort the data)

通过高斯函数导数检测图像边缘，实质是方向可调小波变换检测图像边缘。(Derivative of Gaussian function through the image edge detection, in essence, Steerable wavelet transform image edge detection.)

微粒群优化算法，经典的粒子群优化算法，第一参数是适应值函数，因此方便多次使用(Particle swarm optimization algorithm, the classical particle swarm optimization algorithm, the first parameter is the fitness function, so convenient to use many times)

基于交叉验证法小波降噪程序，主要应用白噪声(Cross-validation method based on wavelet noise reduction program, the main application of white noise)

求频率响应的程序，里面提供了三个求的方法，经过本人调试(frequency response)

实现单稳触发功能，扩展输入信号为指定时常(a implement of mono，expand the input signal to a given time)

美国PG&E69节点配电系统潮流计算原始数据（各节点和支路信息）(US PG & E69 node flow calculation raw data distribution system (each node and branch information))

types of mask useful in image processing