CRFall

相当好的源代码，很有用，值得收藏，多用于图像拼接(Very good source code, useful, worthy of collection, used for image mosaic)

QR码作为一种可高速、全方位识别的二维条码,已经在各行各业中得到了应用,并具有很大发展潜力.本文针对QR码图像的识别过程中可能遇到的图像噪声干扰、QR码占实际拍摄图像的一部分、倾斜、几何失真等问题进行了研究,提出了通过改进型中值滤波去除噪声,使用QR码符号特性定位并对倾斜图像进行旋转,对失真不严重的图像采用控制点变换和双线性插值方法进行几何校正.实验证明, 本文的方法简单有效, 可以用于提高条码的正确识别率.(As a high-speed, full identification of the two-dimensional bar code, QR code has been applied in all walks of life, and also has great potential for development. In this paper, aiming at QR code image recognition process may be encountered in noise interference, QR code accounting for the actual captured image just a part, slant, geometric distortion, and other issues have been studied, put forward through improved median filter to remove noise, use QR code symbol characteristics to locate and rotate the tilted image, distortion which is not serious use control-point transform and spatial bilinear interpolation method for geometric correction. The results show that this method is simple and effective, can be used to improve the QR code correct recognition rate.)

BBN802.11系统模型的Matlab代码(BBN802.11 system model of Matlab code)

采用MATLAB GUI 设计的加法器界面，输入两个数，实现两数相加的功能，适合于刚刚接触的同学。(Using MATLAB GUI interface design adder, enter two numbers, two numbers together to achieve the function, just contact for students.)

说明：  matlab涉及到数据的导入的方法，用matlab做实验研究的同学可以下载看看！(the methods of adding datas into programms ,the dscription is very elebrate!!!)

线性相关 求逐月异常序列x(n,12)和y(n,12)(n是年)相同月份之间的滞后超前nt年的相关系数rt(-nt:nt,12)，其中nt最大的滞后或超前时间（单位：年）。 (Linearly related to demand monthly abnormal sequence x (n, 12) and y (n, 12) (n is the year) ahead of the same month lag between the years of the correlation coefficient nt rt (-nt: nt, 12), in which nt the largest lag or lead time (unit: years).)

below is the matlab code for the rls algorithm for noise cancellation.can anybody explain me clearly what the code does with an example of N .

用来实现matlab的BP算法，以齿轮箱故障诊断为例(Matlab used for the BP algorithm to fault diagnosis of gearbox as an example)

Image transformation by using fft

双馈感应风力发电机的模型，矢量控制，定子电压定向，完全自己搭建(Doubly fed induction wind generator model, vector control, the stator voltage oriented, to build their own completely)