OpenCV稀疏光流应用在运动目标追踪

 #include <opencv2/video/video.hpp>

    
 #include <opencv2/highgui/highgui.hpp>
    
 #include <opencv2/imgproc/imgproc.hpp>
    
 #include <opencv2/core/core.hpp>
    
 #include <iostream>
    
 #include <cstdio>
    
 using namespace std;
    
 using namespace cv;
    
 //当前帧图片
    
 Mat frame, gray;
    
 //前一帧图片
    
 Mat prev_frame, prev_gray;
    
 //保存特征点
    
 vector<Point2f> features;
    
 //初始化特征点
    
 vector<Point2f> inPoints;
    
 //当前帧和前一帧的点
    
 vector<Point2f> fpts[2];
    
 //特征点跟踪标志位
    
 vector<uchar> status;
    
 //误差和
    
 vector<float> err;
    
 //角点检测