procOneScale      295 modules/cudaoptflow/src/tvl1flow.cpp     void OpticalFlowDual_TVL1_Impl::procOneScale(const GpuMat& I0, const GpuMat& I1, GpuMat& u1, GpuMat& u2, GpuMat& u3, Stream& _stream)
procOneScale     1271 modules/video/src/tvl1flow.cpp void OpticalFlowDual_TVL1::procOneScale(const Mat_<float>& I0, const Mat_<float>& I1, Mat_<float>& u1, Mat_<float>& u2, Mat_<float>& u3)