@article{subjectiveopinionsmattercontrollableimag,
  title = {ER-IQA: Boosting Perceptual Quality Assessment Using External Reference Images},
  author = {Jingyu Guo and Wei Wang and Wenming Yang and Qingmin Liao and Jie zhou},
  year = {2021},
  eprint = {2105.02464},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.02464v2},
}