@misc{indiciae2bce9031eb71,
  title = {Shape from shading. II. Geodesic bisection and alignment.},
  author = {A Johnston and P J Passmore},
  year = {1994},
  doi = {10.1068/p230191},
  url = {https://pubmed.ncbi.nlm.nih.gov/7971097/},
  note = {Source identifier: 7971097}
}