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Proceedings Paper

Lighting And Accuracy In Machine Vision Inspection
Author(s): Q. H. Ma; S. M. Wu; G. L. Hu
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Paper Abstract

This paper discusses some accuracy related problems of a vision inspection system which were studied in developing such a system for a drill inspection. A structured illumination device was designed to obtain high quality image of a drill. The errors in image conversion was studied and it was found that the variation of the illumination intensity changed the dimension of the parts due to the quantization effect of the digital computer. A CCD linear array based light monitoring system was proposed to provide the information about the light distribution of the image. Several possible control schemes upon the output of the monitoring system are discussed.

Paper Details

Date Published: 24 October 1988
PDF: 6 pages
Proc. SPIE 0958, Automotive Displays and Industrial Illumination, (24 October 1988); doi: 10.1117/12.947733
Show Author Affiliations
Q. H. Ma, University of Wisconsin-Madison (United States)
S. M. Wu, University of Michigan (United States)
G. L. Hu, Institute of Applied Optical Technology (China)

Published in SPIE Proceedings Vol. 0958:
Automotive Displays and Industrial Illumination
B. Jin Chang; Thomas M. Lemons, Editor(s)

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