Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik IPK

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  • Publication
    Automatic recognition of scanned technical drawings
    ( 1993)
    Krause, F.-L.
    ;
    Jansen, H.
    ;
    Luth, N.
    The problems of automatic conversion of large-scaled documents (technical drawings or maps) into a CAD-file are represented. Existing systems for automated drawing conversion are well suited for documents of excellent quality. The "bad" documents e.g. old blueprints or very complex drawings can be hardly processed by these systems because of time consuming interactive postprocessing of results data. This paper describes a system which involves developed fast and adaptive image processing tools for processing of "bad" documents scanned with low resolution. The results and experiences on the field of graphic recognition and 2D-interpretation of scanned technical drawings are shortly described. Additionally, the requirements to a future system based on our developed processing tools are represented.