Comparative study of the k nearest neighbour, threshold and neural network classifiers for handwritten signature verification using an enhanced directional PDF. - Jean-Pierre Drouhard; Robert Sabourin; Mario Godbout (ICDAR, 1995)

A neural network approach to off-line signature verification using directional PDF. - Jean-Pierre Drouhard; Robert Sabourin; Mario Godbout (Pattern Recognit., 1996)