Posts Tagged ‘quality control’

Second internship on the Grace project

Monday, August 27th, 2012

Internship on Grace project
After the experience of Samar Ehab El-Bahrawi, another student has gained the opportunity to experience and to participate to the Grace project.

Esteban Arroyo Esquivel, student at the Polytechnic Institute of Bragança, has joined Università Politecnica delle Marche working on adaptive image pre-processing for automated quality control.

Here, the story of his experience:

My name is Esteban Arroyo Esquivel. I am a Costa Rican student of Industrial Engineering at the Polytechnic Institute of Bragança, Portugal.

Within the Grace project cooperation, I had the chance to complete a practical stage at Università Politecnica delle Marche. During my time there, I worked in the experimental phase of my master thesis project on adaptive image pre-processing for automated quality control. The project pursued the objective of adaptively enhancing the quality of pictures acquired in production lines, with the aim of improving effectiveness of the posterior object-detection algorithms used during the processing stage of the quality control procedures. The proposed approach was based on neural networks and image feature-extraction, and was conceived in the context of dynamic multi-agent systems.

The research personnel and the machine vision equipments available at the Measurements Lab of Università Politecnica delle Marche were of great help for the achievement of the experimental results of the project. Moreover, I had the chance to learn alternative vision-based techniques and expand my experience in issues related to robotics and programming.

Finally, Grace project gave me the chance to share ideas with researchers from different countries, improve the quality of my research project and gain valuable knowledge in the area of automated industrial systems.


Tuesday, April 10th, 2012

Antwerp (Belgium) 4th April 2012

An innovative measurement technique developed within the WP 3 activities was presented at OPTIMESS 2012.

The contribution:

“Vision system based on a conic mirror for dimensional measurements inside near-cylindrical cavities”
L. Stroppa | A. Bastari | N. Paone

was presented on the 4th of April, in the parallel session Dimensional Metrology in front of an international audience by the Ph.D. student Lorenzo Stroppa. The conference, founded in 2004, was hosted at the City Campus of the University of Antwerp and was organized in the framework of the OPTIMESS Scientific Research Network supported by the Research Foundation – Flanders. In 2009, the OPTIMESS conference was organized in Antwerp, and was attended by 115 participants from 19 different countries. This year even more participants attended the conference, and researchers from university and companies from 21 different countries presented their works.

The presents work, which is also part of the public Deliverable 3.2, concerns the development of an optical measurement system to be used for the measurement of the gap between the gasket and the drum in washing machines. The device is composed of a camera with a lens and a conic mirror aligned with the camera. This setup allows to capture all the cylindrical field of view in one image, so that the measurement can be performed quickly, without the need for moving/rotating scanning devices.

During the presentation, the system layout, the working optical principles and the performance of the measurement device were presented. The high interest aroused around the subject was confirmed by the numerous questions asked by the audience, aimed at a deeper understanding of the optical principles behind the system and at knowing if the system can be effectively used in other measurement fields concerning cylindrical objects.

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