@misc{indiciaeb29c04226ebb,
  title = {Hilbert-space Karhunen-Loève transform with application to image analysis.},
  author = {A Levy and J Rubinstein},
  year = {1999},
  doi = {10.1364/josaa.16.000028},
  url = {https://pubmed.ncbi.nlm.nih.gov/9919692/},
  note = {Source identifier: 9919692}
}