Combined static and dynamic features types for online signature verification

Date of Publication

2007

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Computer Science

College

College of Computer Studies

Department/Unit

Computer Science

Thesis Adviser

Jocelynn W. Cu

Defense Panel Member

Nelson Marcos
Jose Ronello T. Bartolome

Abstract/Summary

A new online signature verification using static and dynamic features is presented. Static features are characteristics of signatures that pertain to the shaper of the signature. On the other hand dynamic features are concerned with characteristics related to time. The combination of both feature types is used to address multiple types of forgery namely the random, simple and skilled.

The four (4) major steps for signature are preprocessing, feature extraction, template generation and verification. Size normalization, Gaussian filter and baseline correction are used for preprocessing the signature. Features used in the system include velocity of X, velocity of Y,X,Y, [X.Y]., sin, cosine an curvature. Dynamic Time Warping (DTW) is used for both template generation and verification due to the variances in tome of the features. The experimental results showed a decrease in FAR and an increase in FRR when combining both feature types. Overall the result yielded a 3.8% FAR and a 24.0% FRR for all types if forgeries."

Abstract Format

html

Language

English

Format

Print

Accession Number

TU14643

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

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