@misc{indiciaecfc6a7180c3d,
  title = {Fast motion estimation using bidirectional gradient methods.},
  author = {Yosi Keller and Amir Averbuch},
  year = {2004},
  doi = {10.1109/tip.2004.823823},
  url = {https://pubmed.ncbi.nlm.nih.gov/15326846/},
  note = {Source identifier: 15326846}
}