ICFHR 2010 Signature Verification Competition (4NSigComp2010) (4NSigComp2010)
Forensic signature analysis, offline signatures, identification, verification
The collection contains offline signature samples. The signatures were collected under the supervision of Bryan Found and Doug Rogers in the years 2002 and 2006, respectively. The images were scanned at 600dpi resolution and cropped at the Netherlands Forensic Institute for the purpose of 4NSigComp2010 signature verification competition.
Sample signatures from the 4NSigComp2010 dataset.
The signature collection for training contains 209 images. The signatures comprise 9 reference signatures by the same writer “A” and 200 questioned signatures. The 200 questioned signatures comprise 76 genuine signatures written by the reference writer in his/her normal signature style; 104 simulated/forged signatures (written by 27 forgers freehand copying the signature characteristics of the reference writer); 20 disguised signatures written by the reference writer. The disguise process comprises an attempt by the reference writer to purposefully alter his/her signature in order to avoid being identified or for him/her to deny writing the signature. The simulation/forgery process comprises an attempt by a writer to imitate the reference signature characteristics of a genuine authentic author.
The signature collection for testing contains 125 signatures. The signatures comprise 25 reference signatures by the same writer “B” and 100 questioned signatures. The 100 questioned signatures comprise 3 genuine signatures written by the reference writer in his/her normal signature style; 90 simulated signatures (written by 34 forgers freehand copying the signature characteristics of the reference writer); 7 disguised signatures written by the reference writer. All writings were made using the same make of ballpoint pen and using the same make of paper.
Any use of these data must cite the following reference.