sift

通过使用平面波发计算光子晶体能带图，这个图是我自己弄的，非常辛苦。但是希望能给从事光学研究的朋友的带来帮助。(Calculating the bandgap of a photonic crystal by using a plane wave gives me a very hard picture of myself. But I hope to help those who engage in optical research.)

专门用于计算频散现象的matlab程序，各种功能函数都提供，并且还有举例说明，希望对大家的研究有所帮助(compute dispersion)

PLS算法Matlab程序，需要的请下载，实用性比较强！(PLS algorithm Matlab procedures need to download practicality strong!)

Occupancy Grid Mapping: using bayesian rules to update the grid probability of occupancy for only static coordinate (the probability describe the cell is occupied or not or unknown)

analyze data association algorithms (Nearest Neighbour and JCBB) in SLAM. Data association is basically a combinatorial optimization problem whose goal is to find the “best” set of associations between the observations and predictions according to a particular criterion (e.g. individual compatibility). Form this point of view, near- est neighbour (NN, a.k.a. ML) is simply a “greedy” algorithm in which the “compatibility” of individual associations with each other is not examined. On the contrary, JCBB, by considering both the individual and joint compatibility, is able to yield much better results. JCBB uses the branch and bound technique in order to prune the search tree

在基于matlab移动通信仿真中要使用到，作为信源使用，这个是信源码的编码的程序。(Matlab-based simulation of mobile communication should be used as a source to use, this is the letter of the procedure source code.)

利用MATLAB的fullbnt贝叶斯网络工具箱构建贝叶斯网络，进行贝叶斯网络推理( The fullbnt Bayesian networks using MATLAB toolbox to build Bayesian networks, Bayesian network inference)

计算这一年已经逝去的天数（包括当天）。在平年中，它的取值范围为1到365，在闰年中，它的取值范围1到366。编写一个MATLAB程序，输入年，月，日，输出为对应的该天是当年的第几天。 闰年是这样规定的 1）.能被400整除的年为闰年 2）能被100整除但不能被400整除的年不为闰年 3）.能被4整除但不能被100整除年为闰年 4）.其余的年份不为闰年 (This year has calculated the number of days elapsed (including that day). In non-leap year, it ranges from 1 to 365 in a leap year, it s the range of 1 to 366. Write a MATLAB program, enter the year, month, day, corresponding to the output of the first year of the day is a few days. This leap is required 1) is divisible by 400 is a leap year 2) can be divisible by 100 but not divisible by 400 years is not a leap year 3) be divisible by 4 but not divisible by 100 is a leap year 4) the rest of the year is not leap year)

A*算法路径规划，有详细介绍文本 适合于初学者，学习算法。(A* algorithm for path planning, a detailed text is suitable for beginners, learning algorithms.)

首先从视频中提取100张图片，用其中五十张图片根据平均值法获得背景图片，然后做差，二值化，提取目标。(First, extracting 100 images from the video ,using fifty pictures to obtain the background image with the method of average. Then frame difference, binary, extracting the target. )