Signature Verification Competition for Online and Offline Skilled Forgeries (SigComp2011)

Marcus Liwicki, Muhammad Imran Malik, C. Elisa van den Heuvel, Xiaohong Chen, Charles Berger, Reinoud Stoel, Michael Blumenstein, Bryan Found

In: 11th International Conference on Document Analysis and Recognition. International Conference on Document Analysis and Recognition (ICDAR-11) 11th September 18-21 Beijing China Seiten 1480-1484 IEEE Computer Society 9/2011.


The Netherlands Forensic Institute and the Institute for Forensic Science in Shanghai are in search of a signature verification system that can be implemented in forensic casework and research to objectify results. We want to bridge the gap between recent technological developments and forensic casework. In collaboration with the German Research Center for Artificial Intelligence we have organized a signature verification competition on datasets with two scripts (Dutch and Chinese) in which we asked to compare questioned signatures against a set of reference signatures. We have received 12 systems from 5 institutes and performed experiments on online and offline Dutch and Chinese signatures. For evaluation, we applied methods used by Forensic Handwriting Examiners (FHEs) to assess the value of the evidence, i.e., we took the likelihood ratios more into account than in previous competitions. The data set was quite challenging and the results are very interesting.

Deutsches Forschungszentrum für Künstliche Intelligenz
German Research Center for Artificial Intelligence