Articles

On‐line handwritten signature verification using stroke direction coding

[+] Author Affiliations
Winston L. Nelson

AT&T Bell Laboratories 600 Mountain Avenue Murray Hill, New Jersey 07974

Opt. Eng. 35(9), 2526-2533 (Sep 01, 1996). doi:10.1117/1.600857
History: Received Feb. 9, 1996; Accepted May 6, 1996
Text Size: A A A

Abstract

A method for the automatic verification of handwritten signatures is described. The method relies on global and local features that summarize aspects of signature shape and dynamics of signature production. We demonstrate that with the addition of our local feature based on stroke direction coding, the performance of signature verification improves significantly. The improvement is comparable with that of more sophisticated algorithms, which require much more computer resources. The current version of the program needs about 150 bytes to store a signature model and has 3% equal error rate. At the 1% false rejection point, the addition of the stroke direction information to the algorithm with only global features reduces the false acceptance rate from 13 to 7.5%. Prior to extraction of stroke direction information, signatures are normalized for position, size, and orientation using their Fourier transform. Such a scheme can also be useful in signature smoothing and compression. © 1996 Society of Photo−Optical Instrumentation Engineers.


Citation

Ramanujan S. Kashi ; William Turin and Winston L. Nelson
"On‐line handwritten signature verification using stroke direction coding", Opt. Eng. 35(9), 2526-2533 (Sep 01, 1996). ; http://dx.doi.org/10.1117/1.600857


Figures

Tables

References

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement
  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.