Research

year 1991 
author Kidong Kim 
Keyword Vision System; CAD(Computer-Aided Design); Edge; Thinning; Feature Extraction; GEFG(Generalized Edge Face Graph) 
Abstract Up to now, production system has been automated only locally. To achieve total automation it is required to link each local modules such as CAD, CAM, CAPP into a unified and integrated system. One of such attempts is to link CAD and computer vision system. In this thesis, we propose a modified algorithm that carries out edge detection, thinning and pruning using the image data of manufactured parts, which are transmitted to computer from video camera. We also propose a feature extraction and surface determination algorithm which extract informations which are compatible to IGES CAD data from the image data. Furthermore, we suggest a methodology to reduce search efforts for CAD data bases. The methodology is based on graph submatching algorithm in GEFG(Generalized Edge Face Graph) representation for each part. 
c MS 

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