PyrLK_CUDA        563 modules/superres/src/optical_flow.cpp     class PyrLK_CUDA : public GpuOpticalFlow, public cv::superres::PyrLKOpticalFlow
PyrLK_CUDA        585 modules/superres/src/optical_flow.cpp     PyrLK_CUDA::PyrLK_CUDA() : GpuOpticalFlow(CV_8UC1)