The MOBISIG on-line signature database

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• Address: http://www.ms.sapientia.ro/~manyi/mobisig/MOBISIG.ZIP
• Download MOBISIG

• Margit ANTAL, László Zsolt SZABÓ and Tunde TORDAI (2018), On-line Signature Verification on MOBISIG Finger Drawn Signature Corpus, 2018, [LINK]
• Margit ANTAL and Andras BANDI (2017), Finger or Stylus: Their Impact on the Performance of On-line Signature Verification Systems (MACRO2017), 27-28 October, 2017 Tirgu Mures, 2017, pp. 11-22. doi: 10.1515/macro-2017-0002[LINK]

Signature files

Each user has a dedicated folder which contains the 45 genuine signatures of the user and the 20 forgeries made by other users. The naming convention of the files is as follows:

SIGN_[TYPE]_USER[SID]_USER[WID]_[NR].csv

• TYPE is FOR for forgeries and GEN for genuine signatures.
• SID is the identifier of the user whose signatures contains the folder.
• WID is the identifier of the user, who has written the signature and in the case of genuine signatures SID and WID are equal, while in the case of forgeries these are always different.
• The NR at the end of the filename has a value from 1 to 45 for genuine signatures and 1 to 20 for forgeries.
• The first 15 genuine signatures were collected in the first session, the second 15 signatures in the second, while the third 15 signatures were collected in the third session. The first 10 forgery signatures were collected in the second session, while the second 10 forgery signatures in the third session.
• The naming conventions of the folders is USER[SID].
• Each signature is represented as a sequence of points and is stored in a file.
• Each line of the file represents one point of the signature and consists of the following features: x-coordinate, y-coordinate, time stamp, pressure, finger area, x-velocity, y-velocity, x-acceleration, y-acceleration, z-acceleration, xgyroscope, y-gyroscope, z-gyroscope.