Added object tracking using optical flow

AlexeyAB

2017-12-25 7113d2cc7fceb0fb599326aec65771c33f5f4386

 src/cuda.c

@@ -26,6 +26,7 @@

void check_error(cudaError_t status)
{
    //cudaDeviceSynchronize();
    cudaError_t status2 = cudaGetLastError();
    if (status != cudaSuccess)
    {