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Talal’s Online Signature Verification System Defeated all the Fogery Attempts, Including our President and VP of Research

Talal’s Online Signature Verification System Defeated all the Fogery Attempts, Including our President and VP of Research

Ryerson Multimedia Lab Contribution to OCE

This year, Ryerson Multimedia Lab was represented by two groups at OCE. One group presented a project on human face detection and the other group presented an On-line Signature Verification System.

Ryerson Multimedia Lab Contribution to OCE

On-Line Signature Verification System

The shape of an On-line signature is used as a single discriminating feature. Shape of signature is used alone for verification purposes and sometimes it is used in combination with some other dynamic features such as velocity, pressure and acceleration. The shape of an On-line signature is basically formed due to the wrist and fingers movements where the wrist movement is represented by the horizontal trajectory and the movement of the fingers is represented by vertical trajectory. As the On-line signature is formed due to the combination of two movements that are independent of each other so it will be more useful to use them as two separate discriminating features.

On-Line Signature Verification System

On-Line Signature Verification System

We believe that every signer has some discriminating points that a forger cannot mimic with certain pressure and velocity whereas these points are maintained by the genuine signer. So the verification based on these discriminating points can lead us to a better performance of the verification system. For a reliable verification system, comparison between forgery and genuine signer should be made on the basis of discriminating points rather than using all the sample points of each trajectory in the verification which means that all the points are given equal weights and there is always a possibility that the non-discriminating points can overshadow the effect of discriminating points.

Applications include:

- ATM machines.

- Security access to laboratories.