@article{effectivepersistenthomologyofdigital,
  title = {Effective persistent homology of digital images},
  author = {Ana Romero and Julio Rubio and Francis Sergeraert},
  year = {2014},
  eprint = {1412.6154},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1412.6154v1},
}