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Lizenz
Report (Bericht) zugänglich unter
A step towards understanding paper documents
URN: urn:nbn:de:bsz:291-scidok-36661
URL: http://scidok.sulb.uni-saarland.de/volltexte/2011/3666/
Quelle:
(1990) Kaiserslautern ; Saarbrücken : DFKI, 1990
pdf-Format:
Dokument 1.pdf (162 KB)
SWD-Schlagwörter:
Künstliche Intelligenz
Institut:
DDC-Sachgruppe:
Informatik
Dokumentart:
Report (Bericht)
Schriftenreihe:
Research report / Deutsches Forschungszentrum für Künstliche Intelligenz [ISSN 0946-008x]
Bandnummer:
90-08
Sprache:
Englisch
Erstellungsjahr:
1990
Publikationsdatum:
27.06.2011
Kurzfassung auf Englisch:
This report focuses on analysis steps necessary for a paper document processing. It is divided in three major parts: a document image preprocessing, a knowledge-based geometric classification of the image, and a expectation-driven text recognition. It first illustrates the several low level image processing procedures providing the physical document structure of a scanned document image. Furthermore, it describes a knowledge-based approach, developed for the identification of logical objects (e.g., sender or the footnote of a letter) in a document image. The logical identifiers provide a context-restricted consideration of the containing text. While using specific logical dictionaries, a expectation-driven text recognition is possible to identify text parts of specific interest. The system has been implemented for the analysis of single-sided business letters in Common Lisp on a SUN 3/60 Workstation. It is running for a large population of different letters. The report also illustrates and discusses examples of typical results obtained by the system.
Lizenz:
Standard-Veröffentlichungsvertrag