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Proceedings Paper

Alignment of image profiles in optical gauging
Author(s): Eric Elliott Pickett; Eddie Hsu
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Paper Abstract

In a steel bar rolling mill, billets are run through a series of rolling stands to produce steel bars with various cross-sectional shapes. An optical gauge is used to provide on-line measurements for the purpose of statistical process control of the mill operation. The orientation of the bar in the gauge must be determined in order to accurately infer critical dimensions. An algorithm is developed for aligning the optical image to remove any bar twist. Bar size determination from the aligned measurement sequence using an exact interpolation technique is also described.

Paper Details

Date Published: 28 May 1993
PDF: 7 pages
Proc. SPIE 1821, Industrial Applications of Optical Inspection, Metrology, and Sensing, (28 May 1993); doi: 10.1117/12.145551
Show Author Affiliations
Eric Elliott Pickett, Univ. of Toronto (Canada)
Eddie Hsu, Univ. of Toronto (Canada)

Published in SPIE Proceedings Vol. 1821:
Industrial Applications of Optical Inspection, Metrology, and Sensing
Gordon M. Brown; Kevin G. Harding; H. Philip Stahl, Editor(s)

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