Title: Development of an experimental device of automatic inspection for printed labels and extension to its prototype

Authors: Shingo Tamura, Yuhki Shiraishi, Fumiaki Takeda

Addresses: Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, Japan. ' Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, Japan. ' Kochi University of Technology, 185 Miyanokuchi, Tosayamada, Kami, Kochi 782-8502, Japan

Abstract: For the automation of visual inspection for printed labels, which are coated with rubber and curl, we have developed a camera-based portable experimental device of automatic inspection in this research. By experiments, we have verified that the experimental device surely detect the failures such as the stain, the patchiness, the spread and the chip detected by using low-dimensional feature vectors unless the conveyance errors occur. Thus, we consider a necessity to develop a mechanism repressing the occurrence of the conveyance errors. To solve the problem, we have extended the experimental device to an improved one for the automatic inspection as a prototype. From the result of the verification experiment using the prototype, we have also verified that the conveyance error hardly occurs.

Keywords: automatic optical inspection; AOI; mechanical systems; pattern recognition; real-time systems; image processing; image segmentation; machine vision; web camera; automatic inspection; printed labels; visual inspection; conveyance errors.

DOI: 10.1504/IJISTA.2010.036582

International Journal of Intelligent Systems Technologies and Applications, 2010 Vol.9 No.3/4, pp.274 - 285

Published online: 04 Nov 2010 *

Full-text access for editors Access for subscribers Purchase this article Comment on this article