txthide

This a camera calibration toolbox for generic lenses. The toolbox can be used to calibrate conventional, wide-angle and fish-eye lens cameras. The calibration is based on viewing a planar calibration object. The intrinsic and extrinsic camera parameters are estimated from control point correspondences between the calibration plane and calibration images. This toolbox is a result of research that has been carried out in the Laboratory of Computational Engineering at Helsinki University of Technology and in the Machine Vision Group at University of Oulu.

说明：  该code是黄金分割算法matlab程序,给定一个方程和变量取值范围,通过该code即可找到目标函数最小值,是优化分析过程中很好的一个基本算法.(this code is the golden-section algorithm. For a given range of design variables, the code can find the maximum of objective function. This code is a basic and useful algorithm in optimization method.)

求peaks函数的极值。中间有一步需手动选取6个点。(get extream values of peaks function. You need to pick six points in one step.)

子波分析是一种日益获得广泛应用的信号处理新技 术, 具有良好的时-频局部化特性, 尤其适用于时变及非平 稳信号。本文简述了子波函数与子波展开的基本概念, 利用 展缩子波和调和子波将信号及信号均方值进行时-频两维 分布。最后采用了三种子波分析方法对轴承故障进行诊断, 即使对现有各种方法尚难以诊断的滚动体故障, 也能获得 满意的结果, 说明子波分析的确为机械故障诊断提供了强 有力的分析手段。(Wavelet a nalysis, as a new technique of signal processing , possesses ex cellent characteristic of time-frequency localization and is suitable for analyzing the time-var ying or transient signals. In this paper , the basic concepts of wavelet function and wavelet expansion are briefly introduced. The time frequency distribution of signal and its energy are obtained by decomposition via dilating wavelet and harmanic wavelet. )

Calcula the PAPR and the CCDF of the ofdm signal

按照KC Ho 的一篇论文Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors_ Analysis and Solution写的仿真代码，用于3基站以上对固定目标进行定位，方法是两步最小二乘，实际上第二步完全不能用，不知道是不是自己写的有问题，欢迎讨论~(According to the paper "Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors_ Analysis and Solution" written by KC Ho, I write the code for simulation, the method is the least square, in fact, the second step is completely out of use, I do not know whether it is my problem or not, if you have any idea, welcome to discuss)

高斯消元的一个例子。。应用于数值分析算法。希望能帮到大家。(gauss)

说明：  多焦点图像融合 利用基于双边梯度的锐化标准 相当对应的论文是J. Tian, L. Chen, L. Ma and W. Yu, "Multi-focus image fusion using a bilateral gradient-based sharpness criterion,"(This is a demo program of the paper J. Tian, L. Chen, L. Ma and W. Yu, "Multi-focus image fusion using a bilateral gradient-based sharpness criterion," Optics Communications, Vol. 284, Jan. 2011, pp. 80-87.)

path planning by potential field method

[Matlab]PCM Source code