Writer Identification in Handwritten Documents

This work presents an effective method for writer identification in handwritten documents. We have developed a local approach, based on the extraction of characteristics that are specific to a writer. To exploit the existence of redundant patterns within a handwriting, the writing is divided into a large number of small sub-images, and the sub-images that are morphologically similar are grouped together in the same classes. The patterns, which occur frequently for a writer are thus extracted. The author of the unknown document is then identified by a Bayesian classifier. The system trained and tested on 50 documents of the same number of authors, reported an identification rate of 94%.

[1]  Réjean Plamondon,et al.  Automatic signature verification and writer identification - the state of the art , 1989, Pattern Recognit..

[2]  Sargur N. Srihari,et al.  Individuality of handwritten characters , 2003, Seventh International Conference on Document Analysis and Recognition, 2003. Proceedings..

[3]  Nicole Vincent,et al.  Handwriting and signature: one or two personality identifiers? , 1998, Proceedings. Fourteenth International Conference on Pattern Recognition (Cat. No.98EX170).

[4]  Horst Bunke,et al.  Off-lineWriter Identification Using Gaussian Mixture Models , 2006, 18th International Conference on Pattern Recognition (ICPR'06).

[5]  Louis Vuurpijl,et al.  Writer identification using edge-based directional features , 2003, Seventh International Conference on Document Analysis and Recognition, 2003. Proceedings..

[6]  Horst Bunke,et al.  Off-line handwriting identification using HMM based recognizers , 2004, ICPR 2004.

[7]  Horst Bunke,et al.  Writer identification using text line based features , 2001, Proceedings of Sixth International Conference on Document Analysis and Recognition.

[8]  Thierry Paquet,et al.  Writer identification by writer's invariants , 2002, Proceedings Eighth International Workshop on Frontiers in Handwriting Recognition.

[9]  Horst Bunke,et al.  A full English sentence database for off-line handwriting recognition , 1999, Proceedings of the Fifth International Conference on Document Analysis and Recognition. ICDAR '99 (Cat. No.PR00318).

[10]  Yves Lecourtier,et al.  Defining writer's invariants to adapt the recognition task , 1999, Proceedings of the Fifth International Conference on Document Analysis and Recognition. ICDAR '99 (Cat. No.PR00318).

[11]  Matthias Wölfel,et al.  Feature weighted mahalanobis distance: Improved robustness for Gaussian classifiers , 2005, 2005 13th European Signal Processing Conference.

[12]  Sung-Hyuk Cha,et al.  Individuality of handwriting. , 2002, Journal of forensic sciences.

[13]  Tieniu Tan,et al.  Personal identification based on handwriting , 2000, Pattern Recognit..

[14]  Audrey Séropian.  Analyse de document et identification de scripteurs , 2003 .