Grammatical parsing of document visual structures

Details Grammatical parsing of document visual structures Grammatical parsing of document visual structures

G - Physics

06

K

G06K 9/72 (2006.01)

Patent

CA 2614177

A two-dimensional representation of a document is leveraged to extract a hierarchical structure that facilitates recognition of the document. The visual structure is grammatically parsed utilizing two-dimensional adaptations of statistical parsing algorithms. This allows recognition of layout structures (e.g., columns, authors, titles, footnotes, etc.) and the like such that structural components of the document can be accurately interpreted. Additional techniques can also be employed to facilitate document layout recognition. For example, grammatical parsing techniques that utilize machine learning, parse scoring based on image representations, boosting techniques, and/or "fast features" and the like can be employed to facilitate in document recognition.

Représentation 2D de document étayée pour l'extraction d'une structure hiérarchique qui facilite la reconnaissance du document. On effectue une analyse grammaticale de la structure visuelle par des adaptations 2D d'algorithmes d'analyse statistique. Cela permet la reconnaissance de structures de présentation (par exemple, colonnes, auteurs, titres, notes de bas de page, etc.) et autres éléments, permettant l'interprétation précise de composantes structurelles du document. On peut aussi utiliser des techniques additionnelles pour faciliter la reconnaissance de présentation. Par exemple, les techniques d'analyse grammaticale qui font intervenir l'apprentissage machine, le score d'analyse sur la base de représentations d'images, les techniques de renforcement, et/ou les <=fonctions rapides>= et autres éléments, peuvent être utilisées pour faciliter la reconnaissance de document.

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