DualTVL1OpticalFlow  103 modules/superres/include/opencv2/superres/optical_flow.hpp         class CV_EXPORTS DualTVL1OpticalFlow : public virtual DenseOpticalFlowExt
DualTVL1OpticalFlow  442 modules/video/include/opencv2/video/tracking.hpp class CV_EXPORTS_W DualTVL1OpticalFlow : public DenseOpticalFlow