@InProceedings{Shi:AAAI2022,  
  title = {CPRAL: Collaborative Panoptic-Regional Active Learning for Semantic Segmentation},
  author = {Qiao, Yu and Zhu, Jincheng and Long, Chengjiang and Zhang, Zeyao and Wang, Yuxin and Du, Zhenjun and Yang, Xin},
  booktitle = {AAAI Conference on Artificial Intelligence (AAAI)},
  year = {2022}
}