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From paper to office document standard representation

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5 Author(s)
Dengel, A. ; German Res. Center for Artificial Intelligence, Kaiserslautern, Germany ; Bleisinger, R. ; Hoch, R. ; Fein, F.
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The principles of the model-based document analysis system called Pi ODA (paper interface to office document architecture), which was developed as a prototype for the analysis of single-sided business letters in German, are presented. Initially, Pi ODA extracts a part-of hierarchy of nested layout objects such as text-blocks, lines, and words based on their presentation on the page. Subsequently, in a step called logical labeling, the layout objects and their compositions are geometrically analyzed to identify corresponding logical objects that can be related to a human perceptible meaning, such as sender, recipient, and date in a letter. A context-sensitive text recognition for logical objects is then applied using logical vocabularies and syntactic knowledge. As a result, Pi ODA produces a document representation that conforms to the ODA international standard.<>

Published in:

Computer  (Volume:25 ,  Issue: 7 )