wanghaidong

hilbert spectrum and DFT

matlab code for hand geusture recognization

a genetic algorithm for traveling salesman problem

说明：  几种类型的滤波小程序，可以去看看，全局去噪，阈值去噪(Several types of filtering applets, you can see, global denoising, threshold denoising)

信道编码采用卷积码，解码使用Viterbi解码。调制给出QPSK、16QAM 两种调制方式，并在AWGN和瑞利信道两种信道模型下传输。(Channel coding using convolutional codes, decoding using the Viterbi decoder. Given modulation QPSK, 16QAM modulation in two ways, and in the AWGN and Rayleigh channel model of two-channel transmission.)

说明：  多个系统数据同步公共部分函数源代码，太麻烦了，每次说明都要这么多字(data synchronization system over some public function source code, too cumbersome, each note must so many characters)

小波分析理论与MATALB R2007 实现第十章演示代码(Wavelet analysis theory and MATALB R2007 A Chapter demo code)

说明：  本文以室内、外不同空间的人数统计为背景，研究基于图像的人员计数技术，对某时段内进出摄像机视野中指定区域的人数，或指定区域内在景人数进行统计。主要研究内容有以下几点： （1）人员计数方案论证：本文分析对比了不同人员计数算法，研究分析了基于像素、 基于Hough变换的人员计数算法的优缺点。 （2）基于像素统计的人员计数系统实现：①分别采用近似中值背景模型和高斯混合背景模型提取前景图像；②采用基于HSV颜色空间变换的方法对前景中的阴影进行抑制；③用前景像素数除以人数得到一个人的像素平均值，在已知图像中前景像素数的情况下，可对人数进行估计。 （3）基于Hough变换的人员计数系统实现：①根据人头顶部轮廓近圆的特征,采用Sobel算子提取图像边缘,得到目标轮廓；②设置人员检测计数区，利用Hough变换进行圆检测；③对目标进行跟踪，并且进行有效性判断，记录有效目标；④判断行人是否跨线及跨线方向，实现过往行人的双向人数统计，并对人头进行标记。 (In this paper, indoor outside the different number of spatial statistical background image based on studies of people counting technology, the number of designated areas within some period of time and out of the camera view, the number of designated areas or inner view statistics. The main contents are as follows:       (1) people counting demonstration program: In this paper compares different people counting algorithm analysis based on pixel count algorithm based on the advantages and disadvantages personnel Hough Transform.       (2) based on pixel count of people counting system achieve: ① were used to approximate the value of the background model and a Gaussian mixture background model extraction of the foreground image ② the method of the HSV color space conversion based on the foreground shadow suppressed ③ foreground pixels divided by the average number of pixels to obtain a person s image at a known number of pixels in the foreground of the case, th)

多天线系统中球形检测算法matlab源程序，包括仿真结果(Multi-antenna system sphere detection algorithm matlab source, including the simulation results)

利用Shock Filters去除图像噪声，附件里有关于Shock Filters的网页介绍(use Shock Filters remove image noise, annex on the Shock's website on Filters)