NCJ Number
186073
Journal
International Journal of Forensic Document Examiners Volume: 5 Dated: December/January 1999 Pages: 97-101
Date Published
1999
Length
5 pages
Annotation
This paper proposes a Chinese signature verification system that uses the multi-layer decision method to reduce the processing time and increase the verification rate of the system.
Abstract
In the first layer of this system, a feature vector that does not need complicated calculation is used to identify the input signature. In the second layer, after the signature has been divided into several segments, the relative angles are regarded as a new feature. In the third layer of this system, a simple and flexible distortion measurement approach is proposed to resolve the instability of signatures. In the fourth layer of this system, a signature is divided into several segments from the inflection points by means of wavelet transform. The linear correlation is used to determine the similarity between each segment of template signature and its corresponding segment of input signature. In the final layer, the tremor features are used to distinguish the traced forgery from the genuine signature. In this multi-layer Chinese signature verification system, the processing time is reduced, and the identification rate increases. 19 references