06.QuadTree+LOD

提供函数能进行1维2维的FFT，输入输出的序列长度应为2的整数次方倍(Provides functions can be one-dimensional two-dimensional FFT, sequence length input and output should be an integer power of 2 times)

说明：  There are many tools for Ftp clients on TinyFtpServer, but few server programs

this material is more suitable for students and technology enthusiasts wanting to learn more about the USRP hardware. it contains lots of information

屏幕捕获的程序，将所捕获的屏幕图像保存为BMP格式位图，一个简单的工程(Screen capture program will capture the screen image saved as a BMP bitmap format, a simple project)

利用opencv基于张正友标定法对相机标定，具有详细的中文注释，可以直接运行使用，不过注意配置开发环境，用的vs2012和opencv1、2(Zhang Zhengyou use opencv based calibration method for camera calibration, the Chinese have detailed notes, can be run directly use, but pay attention to configure your development environment, using vs2012 and opencv1,2)

通过计算目标在HSV空间下的H分量直方图，通过直方图反向投影得到目标像素的概率分布，然后通过调用OpenCV的CAMSHIFT算法，自动跟踪并调整目标窗口的中心位置与大小。该算法对于简单背景下的单目标跟踪效果较好，但如果被跟踪目标与背景颜色或周围其它目标颜色比较接近，则跟踪效果较差。(By calculating the H component histogram of the target in the HSV space, the probability distribution of the target pixels is obtained through the reverse projection of the histogram, and then the center position and size of the target window are automatically tracked and adjusted by calling the CAMSHIFT algorithm of OpenCV. The algorithm is better for single target tracking under simple background, but the tracking effect is poor if the tracking target is close to the color of the background or the other target colors.)

VC程序有很多很有用的程序在里面希望大家喜欢啊(net)

PMSM的向量控制系统，仿真环境matlab7.55/simulink ，经测试可直接使用。 (PMSM vector control system, simulation environment matlab7.55/simulink, has been tested and can be used directly.)

利用OpenGL技术绘制了五个红色球体，每个球体和观察点的距离各不相同(Using the OpenGL technology made five red ball, every sphere and the distance of observation points each are not identical)

本实例将通过ISAPI提供的功能实现访问控制过滤器（Autentication Filter）。可以设定最大访问用户的数量以及授权用户名和密码。(example through the provision of functional ISAPI access control filters (Autentication Filter). The visit can set a maximum number of users and the authorized user name and password.)