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

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.