Calibration of an inspection system for online quality control of satin glass

被引：29

作者：

Adamo F. ^{[1
]}

Attivissimo F. ^{[1
]}

Di Nisio A. ^{[1
]}

机构：

[1] Electrical and Electronic Measurements Laboratory, Department of Electrical and Electronic Engineering, Polytechnic of Bari

来源：

IEEE Transactions on Instrumentation and Measurement | 2010年 / 59卷 / 05期

关键词：

Automatic vision inspection; Calibration; Calibration patterns; Fiducial markers; Glass; Image processing; Image registration; Quality control;

D O I：

10.1109/TIM.2010.2040963

中图分类号：

学科分类号：

摘要：

In this paper, a prototype system that is able to reproduce all the functionalities of an automatic glass inspection system is presented. The proposed quality inspection system assures several advantages with respect to the human-made inspection, such as objectivity and accuracy, and it is attractive for small enterprises with respect to commercial vision systems because it guarantees good results and considerable reliability with low incidence on manufacturing costs. In particular, it was proposed in this paper a method, based on morphological operations, for registering the acquisition system, which is composed of several cameras that acquire different partial images of the entire glass sheet moving on a conveyor. A method for digitally correcting the nonuniformities of the lighting system is also discussed; it is based on a least squares spline approximation of the intensity profile. The presented methods are rather general and can be applied to the calibration of image acquisition systems in other application fields. © 2006 IEEE.

引用

页码：1035 / 1046

页数：11

共 33 条

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