Offline signature verification using the trace transform
M. Manoj Kumar, Niladri Bihari Puhan · 2014
In this paper, the trace transform based affine invariant features are applied for signature verification. The trace and diametric functional are suitably chosen to derive a set of circus functions from each signature image. The affine relationships of intra-class and inter-class circus functions are converted to a simple scale and shift correspondence through normalization. The normalized associated circus functions are to be used as the features for signature verification. The similarity measures for same-writer and different-writer pairs are used in deciding the threshold value. The proposed system is found to be effective for signature verification over a large unconstrained signature database.