它是在1978年由Merkel和Hellman提出的。它的主要思路是假定某人拥有大量物品，重量各不同。此人通过秘密地选择一部分物品并将它们放到背包中来加密消息。...

计算器程序源码，C#写的，很清楚，可以运行(Calculator program source code, C# to write, it is clear, you can run)

说明：  飞思卡尔两轮车代码内置pid算法内外环以及串级pid控制(Freescale two-wheeled vehicle code built-in PID algorithm inner and outer loop and cascade PID control)

混合高斯(Mixture of Gaussian, MOG) 背景建模算法和Codebook 背景建模算法被广泛应用于监控视频的运动目标检测问题, 但混合高斯的球体模型通常假设RGB 三个分量是独立的, Codebook 的圆柱体模型假设背景像素值在圆柱体内均匀分布且背景亮度值变化方向指向坐标原点, 这些假设使得模型对背景的描述能力下降. 本文提出了一种椭球体背景模型, 该模型克服了混合高斯球体模型和Codebook 圆柱体模型假设的局限性, 同时利用主成分分析(Principal components analysis, PCA) 方法来刻画椭球体背景模型, 提出了一种基于主成分分析的Codebook 背景建模算法. 实验表明, 本文算法不仅能够更准确地描述背景像素值在RGB 空间中的分布特征, 而且具有良好的鲁棒性.(The background modeling algorithm of mixture of Gaussian (MOG) and codebook is widely used in moving object detection of surveillance video. However, the ball model of MOG usually assumes that the three components of RGB are independent, while the cylinder model of codebook assumes that the value of background pixel is distributed uniformly within the cylinder and the changing direction of brightness points to the origin of the coordinate system. These assumptions reduce the descriptive capability for background modeling. Therefore, the paper proposes an ellipsoid- based background model, which overcomes the MOG and codebook0s limitations. By using principal component analysis to depict the ellipsoid background model, a novel PCA-based codebook background modeling algorithm is proposed. Experiments show that this algorithm can not only give more accurate description of the distribution of background pixels but also have a better robustness.)

Here is how to use C# to scan through files recursively in a computer and add them to a TreeView control. The result will be a C# treeview with folders and files. There are two main functions to accomplish the task. One for scanning directions. The other for creating nodes and child nodes in the TreeView. Both are easily done with recursive C# functions-Here is how to use C# to scan through files recursively in a computer and add them to a TreeView control. The result will be a C# treeview with folders and files. There are two main functions to accomplish the task. One for scanning directions. The other for creating nodes and child nodes in the TreeView. Both are easily done with recursive C# functions..

说明：  需要net3.0以上的平台运行，根据参数设置，可以在后台自动抓取指定驱动器中的指定类型的文件袋指定的保存目录。(Net3.0 above the platform needed to run, according to parameter settings can be specified in the background automatically crawl the specified drive type of file to save the specified directory pocket.)

采用最大方差阈值分割法，对指纹进行提取。(Using the maximum variance threshold segmentation method for fingerprint extraction.)

deii板的nios代码示例，包括所有测试代码；

CEGUI编译器 源码  工具   很好用的工具 有需要的可以下载   很不错哟 

Opencv教程的实例源代码 书中的C/C++语言实例。各实例子目录中的*.dsw和*.dsp文件分别为Windows下Visual C++ 6.0的Workspace文件和Project文件；Makefile是Linux下GNU Make的输入文件。在Windows环境下，双击*.dsw文件将会启动Visual C++ 6.0并装载该实例；在Linux环境下，输入make命令就可以编译该实例。(Opencv tutorial source code examples in the book of C/C++ language examples. .. Each instance subdirectory* dsw and* dsp files are under Visual C++ 6.0 for Windows File and Project Workspace file Makefile Linux is GNU Make the input file. In the Windows environment, double* dsw file will start the Visual C++ 6.0 and load the instance in the Linux environment, enter the make command to compile the examples.)

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