Show simple item record

AuthorAl-Maadeed, S.
AuthorHassaine, A.
AuthorBouridane, A.
AuthorTahir, M.A.
Available date2016-01-14T13:24:26Z
Publication Date2014-12
Publication NamePattern Analysis and Applications
ResourceScopus
CitationAl-Maadeed, S., Hassaine, A., Bouridane, A., Tahir, M.A., "Novel geometric features for off-line writer identification", (2014) Pattern Analysis and Applications, 10 p.
ISSN1433-7541
URIhttp://dx.doi.org/10.1007/s10044-014-0438-y
URIhttp://hdl.handle.net/10576/4079
AbstractWriter identification is an important field in forensic document examination. Typically, a writer identification system consists of two main steps: feature extraction and matching and the performance depends significantly on the feature extraction step. In this paper, we propose a set of novel geometrical features that are able to characterize different writers. These features include direction, curvature, and tortuosity. We also propose an improvement of the edge-based directional and chain code-based features. The proposed methods are applicable to Arabic and English handwriting. We have also studied several methods for computing the distance between feature vectors when comparing two writers. Evaluation of the methods is performed using both the IAM handwriting database and the QUWI database for each individual feature reaching Top1 identification rates of 82 and 87 % in those two datasets, respectively. The accuracies achieved by Kernel Discriminant Analysis (KDA) are significantly higher than those observed before feature-level writer identification was implemented. The results demonstrate the effectiveness of the improved versions of both chain-code features and edge-based directional features.
SponsorQatar National Research Fund through the National Priority Research Program (NPRP) No. 09-864-1-128
Languageen
PublisherSpringer Verlag
SubjectForensic document examination
Handwriting curvature
Handwriting direction
Handwriting tortuosity
Writer identification
TitleNovel geometric features for off-line writer identification
TypeArticle
Pagination488-497


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record