@techreport{tor-96-opflow,
  author = {Jos{\'e} R. A. Torre{\~a}o},
  title = {Estimating {3D} Shape from the Optical Flow of Photometric Stereo Images},
  institution = {Instituto de Computa{\c{c}}{\~a}o, Universidade Federal Fluminense},
  number = {PEC 02/96},
  year = 1996,
  month = apr,
  altkeys = {t-uff}
}