@article {2007.15629, archivePrefix = {arXiv}, eprint = {2007.15629}, primaryClass = {cs.CV}, author = {Namdar Homayounfar and Yuwen Xiong and Justin Liang and Wei-Chiu Ma and Raquel Urtasun}, title = {LevelSet R-CNN: A Deep Variational Method for Instance Segmentation}, year = {2020}, url = {http://arxiv.org/abs/2007.15629} }