@misc{indiciae6e4d6bba39b3,
  title = {A camera that directly measures physical parameters.},
  author = {R Ahmed and S A Vernon},
  year = {1991},
  doi = {10.1177/014107689108400208},
  url = {https://pubmed.ncbi.nlm.nih.gov/1999819/},
  note = {Source identifier: 1999819}
}