2dpsk

he files in this package comprise the Matlab implementation of a foreground segmentation algorithm based upon graph cuts, described in: Better Foreground Segmentation Through Graph Cuts, N. Howe & A. Deschamps. Tech report, http://arxiv.org/abs/cs.CV/0401017. The file extractForeground.m contains a sample function that will perform a complete foreground segmentation for static camera video. It uses a number of parameters, which are described in the documentation. An attempt was made to choose sensible default values, but they may need to be adjusted for some videos. More generally, the implementation in extractForeground.m is only a suggestion of how the graph-based segmentation might be used. The same approach can be applied with other (perhaps time-adaptive) background models. The key step is at line 113 of the code, once the deviation array has been created. The graph-cut segmentation can be applied similarly to a deviation matrix computed in any other way.

利用拉普拉斯变换的思想，通过对数据进行差分，近似得到拉普拉斯变换后的结果，然后检查正负交换的位置，则此为极值点位置，利用此思想得到极值点的位置。(Using the ideas of Laplace transform of the data by the difference approximation get results Laplace transform, and then check the position of the positive and negative exchange, this is the extreme position, take advantage of this thinking of getting extreme points location.)

Abstract There are a number of interesting variable selection methods available beside the regular forward selection and stepwise selection methods. Such approaches include LASSO (Least Absolute Shrinkage and Selection Operator), least angle regression (LARS) and elastic net (LARS-EN) regression. There also exists a method for calculating principal components with sparse loadings. This software package contains Matlab implementations of these functions. The standard implementations of these functions are available as add-on packages in S-Plus and R. Keywords LASSO, LARS, SPCA, Matlab, Elastic Net, Sparse, Sparsity, Variable selection

自己写的人工蜂群算法，内带混沌搜索性质，主函数为funqun1，可随意改适应度函数，fitness。该程序简单易懂，方便修改，并且附有程序说明及相关参考论文，也附有本作者的联系方式。(Write your own artificial bee colony algorithm, with the chaotic nature of the search, the main function of funqun1, free to change the fitness function, fitness. The program is simple to understand, easy to modify, and with reference to the program description and related papers, but also with the author s contact information.)

一个lms算法的matlab仿真程序。实现曲线输出。有很好的参考价值。(An LMS algorithm matlab simulation program. Realize the output curve. Have a very good reference value.)

matlab编写的一系列方程求解函数，适合搞科研的同学(matlab function to write a series of equations for the students to engage in scientific research)

使用matlab实现最小二乘法拟合，首先要先确定拟合函数的形式(Least squares fit using matlab implementation, the first should determine the form of fitting function)

matlab program for calculation of 2D PCs

Levinson/Burg/MUSIC/ARMA算法的功能模块~可直接调用！MATLAB文件，已编译！(Levinson/Burg/MUSIC/ARMA algorithm function module to directly call!)

一个用于系统辨识的特殊输入信号，它由两部分组成，一部分是伪随机二位序列，一部分是随机序列。(A special input signals for system identification, which consists of two parts, part of the pseudo-random sequence of two, as part of a random sequence.)