@article{opticalbraillerecognitionusingcircular,
  title = {Optical Braille Recognition using Circular Hough Transform},
  author = {Zeba Khanam and Atiya Usmani},
  year = {2021},
  eprint = {2107.00993},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2107.00993v1},
}