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Proceedings Paper

Concentricity Using Sub-Pixel Dimensional Measurement
Author(s): John C. Schultz; Frederick M. Waltz
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Paper Abstract

This paper reviews high-precision object location and concentricity measurement using standard TV cameras and a combination of resampling and least-squares model fitting. The computationally intensive resampling calculations were implemented via real-time hardware, using a separable 8 x 8 point approximation to a sinc(x) function. A software approach was used for the least-squares estimation. Particular emphasis is placed on the effects of lighting, part appearance, and environmental factors which ultimately determine system performance.

Paper Details

Date Published: 21 March 1989
PDF: 8 pages
Proc. SPIE 1004, Automated Inspection and High-Speed Vision Architectures II, (21 March 1989); doi: 10.1117/12.948972
Show Author Affiliations
John C. Schultz, 3M Company (United States)
Frederick M. Waltz, 3M Company (United States)


Published in SPIE Proceedings Vol. 1004:
Automated Inspection and High-Speed Vision Architectures II
Michael J. W. Chen, Editor(s)

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