@INPROCEEDINGS{Drbohlav-ICCV01,
  IS = { zkontrolovano 08 Jan 2002 },
  author    = { Drbohlav, Ond{\v r}ej and {\v S}{\'a}ra, Radim},
  title     = {Unambiguous determination of shape from photometric 
               stereo with unknown light sources},
  BOOKTITLE = {Proceedings of International Conference on Computer Vision},
  volume    = { 1 },
  PAGES     = { 581-586 },
  YEAR      = {2001},
  project   = {GACR 102/01/1371, J04/98:212300013, OMNIVIEWS 1999-29017},
book_pages  = { 776 },
ISBN        = { 0-7695-1143-0 },
publisher   = { I{EEE} },
organization = { I{EEE} },
address     = { Los Alamitos, USA },
month       = { jul },
day         = { 9-12 },
venue       = { Vancouver, Canada },
psurl       = { PDF },
authorship  = { 80-20 },
}