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An AI-aided system for the conversion of paper-based technical drawings into a CAD format

: Timmermann, M.; Luth, N.

Proceedings of IAPR Workshop on Mashine Vision Application
Workshop on Machine Vision Application <1992, Tokyo>
Conference Paper
Fraunhofer IPK ()
blackboard architecture; knowledge based interpretation; recognition of graphical primitive; vector data postprocessing

The paper presents a system, which enables the conversion of paper-based technical drawings into a format suitable for CAD systems. The system is based on a commercial available scanning and vectorization unit. Since the vectorization results are far from being perfect, a postprocessing component to remedy some of the weak points have been created. The improved vectorization results permit a knowledge- based interpretation of the drawing content along with error detection and drawing redesign.