A DSmT based system for writer-independent handwritten signature verification

We propose in this paper a new writer-independent off-line handwritten signature verification (HSV) system using only genuine signatures. This system is based on a combination of two off-line individual HSV systems through the plausible and paradoxical reasoning theory of Dezert-Smarandache (DSmT). Firstly, we propose to evaluate the performances of both off-line HSV systems through using one-class SVM classifiers (OC-SVM) that operate independently of each other, which are associated to DCT and Curvelet transform based descriptors. To improve system performance, the outputs of both individual HSV systems are combined in DSmT framework, where a new decision making criterion is proposed. Experimental results conducted on the well known CEDAR database show the effective use of the proposed DSmT based combination for improving the verification accuracy comparatively to individual systems.