Configuration assistant for versatile vision-based inspection systems

Olivier Huesser; Heinz Hugli

doi:10.1117/12.380080

21 March 2000 Configuration assistant for versatile vision-based inspection systems

Olivier Huesser, Heinz Hugli

Proceedings Volume 3966, Machine Vision Applications in Industrial Inspection VIII; (2000) https://doi.org/10.1117/12.380080
Event: Electronic Imaging, 2000, San Jose, CA, United States

Abstract

Nowadays, vision-based inspection systems are present in many stages of the industrial manufacturing process. Their versatility, which permits to accommodate a broad range of inspection requirements, is however limited by the time consuming system setup performed at each production change. This work aims at providing a configuration assistant that helps to speed up this system setup, considering the peculiarities of industrial vision systems. The pursued principle, which is to maximize the discriminating power of the features involved in the inspection decision, leads to an optimization problem based on a high dimensional objective function. Several objective functions based on various metrics are proposed, their optimization being performed with the help of various search heuristics such as genetic methods and simulated annealing methods. The experimental results obtained with an industrial inspection system are presented, considering the particular case of the visual inspection of markings found on top of molded integrated circuits. These results show the effectiveness of the presented objective functions and search methods, and validate the configuration assistant as well.

Citation Download Citation

Olivier Huesser and Heinz Hugli "Configuration assistant for versatile vision-based inspection systems", Proc. SPIE 3966, Machine Vision Applications in Industrial Inspection VIII, (21 March 2000); https://doi.org/10.1117/12.380080

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KEYWORDS

Inspection

Optical inspection

Distance measurement

Algorithms

Genetic algorithms

Contamination

Control systems

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