如何使用多线程来处理openCV图像？

Question

我想使用多线程来处理视频中捕获的每个帧，所以首先，我尝试了一个简单的测试：在两个线程中显示相同的视频，但问题是子线程可以' t显示视频。它只是可以显示主线程的视频。任何人都可以帮我解决这个问题吗？这是我的代码：

HANDLE hMutex = CreateMutex(NULL, false, "IMG");  
int main()
{
  videoMultiThread();
  return 0;
}

DWORD WINAPI TL_FRAME(LPVOID lpParamter)
{
  WaitForSingleObject(hMutex,INFINITE);
  IplImage* frame=(IplImage*)lpParamter;
  cvShowImage("TL",frame);
  cvWaitKey(5);
  cout<<"Thread captured"<<endl;
  ReleaseMutex(hMutex);
  return 0;
}

void videoMultiThread()
{
    CvCapture * cap=cvCreateFileCapture("VIDEO.avi");
    IplImage * frame;
    while(1)
   {
    WaitForSingleObject(hMutex,INFINITE);
    frame=cvQueryFrame(cap);
    if(!frame)break;
    cvShowImage( "frame",frame); 
    cout<<"main thread captured"<<endl;
    //MultiThread
    HANDLE hThread = CreateThread(NULL,0,TL_FRAME,frame,0,NULL);
    CloseHandle(hThread);

    char c=waitKey(5);
    if (c==27)break;
    ReleaseMutex(hMutex); 
   }
   cvReleaseCapture(&cap);
   cvDestroyAllWindows();
}