DefaultReduceToVecPolicy  222 modules/cudev/include/opencv2/cudev/grid/reduce_to_vec.hpp     gridReduceToColumn_<Reductor, DefaultReduceToVecPolicy>(src, dst, mask, stream);
DefaultReduceToVecPolicy  228 modules/cudev/include/opencv2/cudev/grid/reduce_to_vec.hpp     gridReduceToColumn_<Reductor, DefaultReduceToVecPolicy>(src, dst, stream);