@InProceedings{Luo_2021_CVPR, author = {Luo, Kunming and Wang, Chuan and Liu, Shuaicheng and Fan, Haoqiang and Wang, Jue and Sun, Jian}, title = {UPFlow: Upsampling Pyramid for Unsupervised Optical Flow Learning}, booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)}, month = {June}, year = {2021}, pages = {1045-1054} }