Shape Measurement of Steel Strips Using a Laser-Based Three-Dimensional Reconstruction Technique

被引：38

作者：

Molleda, Julio ^{[1
]}

Usamentiaga, Ruben ^{[1
]}

Garcia, Daniel F. ^{[1
]}

Bulnes, Francisco G. ^{[1
]}

Ema, Laura ^{[2
]}

机构：

[1] Univ Oviedo, Dept Comp Sci, Gijon 33204, Spain

[2] ArcelorMittal, R&D Technol Ctr Ind Enhancement, Aviles 33400, Spain

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2011年 / 47卷 / 04期

关键词：

Feature extraction; flatness measurement; image processing; measurement by laser beam; metal industry; shape measurement; width measurement; FLATNESS; SYSTEM;

D O I：

10.1109/TIA.2011.2155019

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quality control is of utmost importance in the metal industry. It requires online measurement and inspection systems which provide precise feedback to closed-loop controllers in industrial facilities. In rolled products, shape is one of the main quality criteria. In this paper, a low-cost real-time 3-D shape measurement system for long flat (FL)-rolled products based on laser triangulation is proposed. The system provides online measurements of two geometrical features of the shape of rolled products: flatness and width. The proposed system is based on 3-D surface reconstruction of rolled products with which flatness can be measured accurately and continuously across the whole width of the strip. Three-dimensional surface reconstruction provides highly accurate width measurements not only of FL products, as do most other systems, but also of non-FL products. The accuracy of the laser extraction method used to reconstruct the surface of the rolled products is evaluated, as well as the online performance of the system.

引用

页码：1536 / 1544

页数：9

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