Signature verification

1. Submitted By:
NAVEEN TOKAS

2.  Computers are largely used in almost each and
every field including financial transactions,
thus providing additional security measures
for computer system is necessary.
 The security measures to be used must be
cheap, reliable and un-intrusive to the
authorized person. The technique which
meets these requirements is handwritten
signature verification.

3.  Everyday transaction
 Individuals less likely to object
 Individual’s signature is unique
 Less controversial

4.  Offline Signature Verification
deals with shape only
 Online signature Verification
deals with dynamic features like speed, pen
pressure, directions, stroke length, and when the
pen is lifted from the paper

5.  The main challenge with online Signature
Identification technology is differentiating between
the consistent parts of the signature and the
behavioral parts of the signature that vary with
each signing . A person’s signature is never entirely
the same. The signature can vary substantially over
an individual’s lifetime. Allowing for these
variations while providing protection against forgers
is a challenging task.

6.  Signature Acquisition
 Signature Identification using global features
 average pressure
 pen tilt
 average velocity
 Number of pen ups
 Training

8.  Low error rate.
 Forgery is detected even when the forger has
managed to get a copy of the authentic
signature.
 Fast and simple training.
 Cheap hardware.
 Little storage requirements.