estimateU         279 modules/video/src/tvl1flow.cpp bool cv_ocl_tvl1flow::estimateU(UMat &I1wx, UMat &I1wy, UMat &grad,
estimateU        1038 modules/video/src/tvl1flow.cpp float estimateU(const Mat_<float>& v1, const Mat_<float>& v2, const Mat_<float>& v3,