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A System For Recognizing A Large Class Of Engineering Drawings, Yuhong Yu, Ashok Samal, Sharad C. Seth
A System For Recognizing A Large Class Of Engineering Drawings, Yuhong Yu, Ashok Samal, Sharad C. Seth
School of Computing: Faculty Publications
We present a system for recognizing a large class of engineering drawings characterized by alternating instances of symbols and connection lines. The class includes domains such as flowcharts, logic and electrical circuits, and chemical plant diagrams. The output of the system, a netlist identifying the symbol types and interconnections, may be used for design simulation or as a compact portable representation of the drawing. The automatic recognition task is divided into two stages: 1) Domain-independent rules are used to segment symbols from connection lines in the drawing image that has been thinned, vectorized, and preprocessed in routine ways. 2) A …