@article{onenhancinggroundsurfacedetectionfrom,
  title = {On Enhancing Ground Surface Detection from Sparse Lidar Point Cloud},
  author = {Bo Li},
  year = {2021},
  eprint = {2105.11649},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2105.11649v1},
}