heat

帧间差分法是一种通过对视频图像序列中相邻两帧作差分运算来获得运动目标轮廓的方法，它可以很好地适用于存在多个运动目标和摄像机移动的情况。当监控场景中出现异常物体运动时，帧与帧之间会出现较为明显的差别，两帧相减，得到两帧图像亮度差的绝对值，判断它是否大于阈值来分析视频或图像序列的运动特性，确定图像序列中有无物体运动。图像序列逐帧的差分，相当于对图像序列进行了时域下的高通滤波。实例中有对应avi文件(Inter-frame difference method is a method that obtains the contour of moving object by differential operation of two adjacent frames in video image sequence. It can be well applied to the situation where there are multiple moving objects and camera moving. When abnormal object motion occurs in the monitoring scene, there will be obvious difference between the frame and the frame. By subtracting the two frames, the absolute value of the brightness difference between the two frames can be obtained. The motion characteristics of video or image sequence can be analyzed by judging whether it is larger than the threshold value, and whether there is object motion in the image sequence can be determined. The frame-by-frame difference of image sequence is equivalent to high-pass filtering of image sequence in time domain. There are corresponding avi files in the instance)

利用环路滤波器，数控振荡器，恢复出QPSK的载波和相位，进行解调(The carrier and phase of QPSK are recovered by loop filter and numerical control oscillator)

利用温度变送器模拟量输入，控制电动阀的开度，从而调节水泵流量。(Using the analog input of temperature transmitter, the opening of the electric valve is controlled to regulate the flow rate of the pump)

以旋转方式切换图片的jquery图片展示，采用了一个jquery中的专用的旋转插件：jquery.rotate.js，旋转效果流畅自然，图片两侧显示控制按钮，可上一张、下一张切换，这款图片切换可用于图片网站、摄影网站、产品网站中。

像花朵一样的不规则VC++窗体制作实例，通过调用透明的BMP位图来实现不规则的窗口，本程序借用花朵的轮廓来实现窗体的轮廓，尚未添加右键菜单和关闭按钮，对于一个不规则的窗口来说，右键菜单是必不可少的，因此本实例并不完整，仅可为制作不规则窗口提供一些思路，你可在此基础上继续开发完善。

读取DBC，发送和接收CAN信号。。。。。。。。。(Read DBC, send and receive CAN signals)

说明：  《无人驾驶车辆模型预测控制》对应代码，添加注释，成功运行！实现了车辆无人驾驶控制的matlab仿真(The corresponding code of "prediction and control of unmanned vehicle model" is added with notes and successfully run! Matlab simulation of vehicle unmanned driving control is realized)

读取两日期，并算两个日期间的天数。示范日期类型的操作。　(read two dates, and count the period of two days. Model date type of operation.)

说明：  利用奇异值法（SVD）对载入数据进行主成分分析，源代码(use of the singular value (SVD) included data on principal component analysis, source code)

用于配电网的重构的混合整数二阶锥规划，利用yamilp工具箱，同时利用了cplex/mosek等求解器求解，配电网示例网架结构较简单。(The mixed integer two order cone programming is used in the distribution network reconfiguration, and the yamilp toolbox is used. At the same time, the cplex/mosek solver is used to solve the problem. The grid structure of the distribution network is simple.)