Shape matrices as a mixed shape factor for off-line signature verification

Shape matrices have been used as a representation of planar shapes like industrial parts or printed characters. We investigate the use of shape matrices as a mixed shape factor for offline signature verification. By mixed shape factor we mean any global shape factor where the position of local measurements are taken into account in the definition of a similarity measure between two representations. It is demonstrated that when using a good similarity measure between two shape matrices, this shape factor is relatively well suited for the global interpretation of signature images.