InforLorV4, Main, Exploration, bibRecord, 001E99

A general approach for multi-oriented text line extraction of handwritten documents

Identifieur interne : 001E99 ( Main/Exploration ); précédent : 001E98; suivant : 001F00

A general approach for multi-oriented text line extraction of handwritten documents

Auteurs : Nazih Ouwayed [France] ; Abdel Belaïd [France]

Source :

International journal on document analysis and recognition : (Print) [ 1433-2833 ] ; 2012.

RBID : Pascal:13-0072755

Descripteurs français

Pascal (Inist)
- Extraction information, Texte, Caractère manuscrit, Mise à jour, Analyse documentaire, Histogramme, Traitement document, Document manuscrit, Annotation, Morphologie, Terminal, Arabe, Extraction forme, Proximité, Recouvrement, ., Traitement image document, Segmentation image.

English descriptors

KwdEn :
- Annotation, Arabic, Document analysis, Document image processing, Document processing, Histogram, Image segmentation, Information extraction, Manuscript character, Manuscript document, Morphology, Overlay, Pattern extraction, Proximity, Terminal, Text, Updating.

Abstract

The multi-orientation occurs frequently in ancient handwritten documents, where the writers try to update a document by adding some annotations in the margins. Due to the margin narrowness, this gives rise to lines in different directions and orientations. Document recognition needs to find the lines everywhere they are written whatever their orientation. This is why we propose in this paper a new approach allowing us to extract the multi-oriented lines in scanned documents. Because of the multi-orientation of lines and their dispersion in the page, we use an image meshing allowing us to progressively and locally determine the lines. Once the meshing is established, the orientation is determined using the Wigner-Ville distribution on the projection histogram profile. This local orientation is then enlarged to limit the orientation in the neighborhood. Afterward, the text lines are extracted locally in each zone basing on the follow-up of the orientation lines and the proximity of connected components. Finally, the connected components that overlap and touch in adjacent lines are separated. The morphology analysis of the terminal letters of Arabic words is here considered. The proposed approach has been experimented on 100 documents reaching an accuracy of about 98.6%.

Affiliations:

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000090
to stream PascalFrancis, to step Curation: 000917
to stream PascalFrancis, to step Checkpoint: 000113
to stream Main, to step Merge: 001F22
to stream Main, to step Curation: 001E99

Le document en format XML

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A general approach for multi-oriented text line extraction of handwritten documents

A general approach for multi-oriented text line extraction of handwritten documents

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri