Face Recognition from a Single Training Image under Arbitrary Unknown Lighting Using Spherical Harmonics. Zhang, L. & Samaras, D. IEEE Trans. Pattern Anal. Mach. Intell., 28(3):351–363, 2006.
Face Recognition from a Single Training Image under Arbitrary Unknown Lighting Using Spherical Harmonics [link]Paper  doi  bibtex   
@article{DBLP:journals/pami/ZhangS06,
  author    = {Lei Zhang and
               Dimitris Samaras},
  title     = {Face Recognition from a Single Training Image under Arbitrary Unknown
               Lighting Using Spherical Harmonics},
  journal   = {{IEEE} Trans. Pattern Anal. Mach. Intell.},
  volume    = {28},
  number    = {3},
  pages     = {351--363},
  year      = {2006},
  url       = {https://doi.org/10.1109/TPAMI.2006.53},
  doi       = {10.1109/TPAMI.2006.53},
  timestamp = {Wed, 14 Nov 2018 00:00:00 +0100},
  biburl    = {https://dblp.org/rec/journals/pami/ZhangS06.bib},
  bibsource = {dblp computer science bibliography, https://dblp.org}
}

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