TY  - RPRT
TI  - Face recognition from a single training image under arbitrary unknown lighting using spherical harmonics.
AU  - Lei Zhang
AU  - Dimitris Samaras
PY  - 2006
DO  - 10.1109/tpami.2006.53
UR  - https://pubmed.ncbi.nlm.nih.gov/16526422/
ID  - 16526422
ER  -