@misc{indiciaea3ba526211b6,
  title = {Double three-step phase-shifting algorithm.},
  author = {Peisen S Huang and Qingying J Hu and Fu-Pen Chiang},
  year = {2002},
  doi = {10.1364/ao.41.004503},
  url = {https://pubmed.ncbi.nlm.nih.gov/12153078/},
  note = {Source identifier: 12153078}
}