Photo-Identification of Humpback and Gray Whales using Affine Moment Invariants. - Nasser Kehtarnavaz; Venkat Peddigari; C. Chandan; W. Syed; Gilbert R. Hillman; Bernd Würsig (SCIA, 2003)

An affine point-set and line invariant algorithm for photo-identification of gray whales. - C. Chandan; Nasser Kehtarnavaz; Gilbert R. Hillman; Bernd Würsig (Image Processing: Algorithms and Systems, 2004)