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Proceedings Paper

Experimental simulation of on-line measurement of screw-thread steel bars
Author(s): Wenyi Chen; Zhiyiung Liu; Junhua Lu; Ping Li
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Paper Abstract

The screw-thread steel bar is a special rolled-one, it moves at a speed of 7 - 12 m/s on production line. In laboratory, it is difficult to reappear it truly. However, according to proportional simulation method, increase the camera's exposure time when the steel bar runs at a lower speed, then we can get image just as the one taken at the workroom; to capture necessary information, structural illumination is adopted, and sample from different angle; with the help of CCD camera's special time delay integration technique, it is easy to process this kind of motion-degraded images; using Soble operator to extract edge will greatly reduce data; the adaptive template-matching is employed to realize feature recognition; by making up straight lines with least mean square method, can work out the useful parameters such as the internal and external diameter, the distance of cross rib and the height of longitudinal rib.

Paper Details

Date Published: 21 November 1995
PDF: 5 pages
Proc. SPIE 2596, Modeling, Simulation, and Control Technologies for Manufacturing, (21 November 1995); doi: 10.1117/12.227211
Show Author Affiliations
Wenyi Chen, Shandong Univ. (China)
Zhiyiung Liu, Shandong Univ. (China)
Junhua Lu, Shandong Univ. (China)
Ping Li, Shandong Univ. (China)

Published in SPIE Proceedings Vol. 2596:
Modeling, Simulation, and Control Technologies for Manufacturing
Ronald Lumia, Editor(s)

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