@article{quantizationinrelativegradientangle,
  title = {Quantization in Relative Gradient Angle Domain For Building Polygon Estimation},
  author = {Yuhao Chen and Yifan Wu and Linlin Xu and Alexander Wong},
  year = {2020},
  eprint = {2007.05617},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.05617v1},
}