Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method

Metallographic analyses of nodular iron casting methods are based on visual comparisons according to measuring standards. In fact, iron foundry workers have a poster that describes several characterizations of the metallographies and, showing the real metal in a microscope, they try to subjectively...

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Main Authors: Javier Nieves, Asier Cabello, Beñat Bravo
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Sci
Subjects:
Online Access:https://www.mdpi.com/2413-4155/6/4/77
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author Javier Nieves
Asier Cabello
Beñat Bravo
author_facet Javier Nieves
Asier Cabello
Beñat Bravo
author_sort Javier Nieves
collection DOAJ
description Metallographic analyses of nodular iron casting methods are based on visual comparisons according to measuring standards. In fact, iron foundry workers have a poster that describes several characterizations of the metallographies and, showing the real metal in a microscope, they try to subjectively check the similarity between those examples and the real one. Currently, there are new approaches related to the application of machine vision and deep learning classifications. Although these aforementioned methods are more precise and accurate, they are more resource consuming, difficult to manage, and less scalable than other simpler methods that do not use the classical way of working with images. Moreover, for day-by-day work, this kind of precision is not needed, and this task must be carried out as fast as possible. Hence, this research work presents a novel approach to apply the same kind of comparisons carried out by human beings, but with the precision of a computer. Specifically, we construct a well-characterized vector database, populated with several metallographies analysed using accurate methods. Then, all images are represented by an embedding that tries to transform them into a vector representation to, finally, create the final classification and characterization of a specific metallography when applied a similarity search method in our learnt knowledge database.
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spelling doaj-art-a52757e1339a4d069fc0b42e0fdcf4e42024-12-27T14:52:08ZengMDPI AGSci2413-41552024-11-01647710.3390/sci6040077Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search MethodJavier Nieves0Asier Cabello1Beñat Bravo2Azterlan Member of Basque Research Team Alliance (BRTA), Aliendalde Etxetaldea 6, 48200 Durango, SpainFaculty of Engineering, University of Deusto, Unibertsitate Etorb., 24, 48007 Bilbao, SpainAzterlan Member of Basque Research Team Alliance (BRTA), Aliendalde Etxetaldea 6, 48200 Durango, SpainMetallographic analyses of nodular iron casting methods are based on visual comparisons according to measuring standards. In fact, iron foundry workers have a poster that describes several characterizations of the metallographies and, showing the real metal in a microscope, they try to subjectively check the similarity between those examples and the real one. Currently, there are new approaches related to the application of machine vision and deep learning classifications. Although these aforementioned methods are more precise and accurate, they are more resource consuming, difficult to manage, and less scalable than other simpler methods that do not use the classical way of working with images. Moreover, for day-by-day work, this kind of precision is not needed, and this task must be carried out as fast as possible. Hence, this research work presents a novel approach to apply the same kind of comparisons carried out by human beings, but with the precision of a computer. Specifically, we construct a well-characterized vector database, populated with several metallographies analysed using accurate methods. Then, all images are represented by an embedding that tries to transform them into a vector representation to, finally, create the final classification and characterization of a specific metallography when applied a similarity search method in our learnt knowledge database.https://www.mdpi.com/2413-4155/6/4/77image classificationsimilarity searchembeddingfoundryfast calculation
spellingShingle Javier Nieves
Asier Cabello
Beñat Bravo
Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
Sci
image classification
similarity search
embedding
foundry
fast calculation
title Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
title_full Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
title_fullStr Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
title_full_unstemmed Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
title_short Classifying and Characterizing Fast Nodular Iron Casting Metallographies by Applying a Similarity Search Method
title_sort classifying and characterizing fast nodular iron casting metallographies by applying a similarity search method
topic image classification
similarity search
embedding
foundry
fast calculation
url https://www.mdpi.com/2413-4155/6/4/77
work_keys_str_mv AT javiernieves classifyingandcharacterizingfastnodularironcastingmetallographiesbyapplyingasimilaritysearchmethod
AT asiercabello classifyingandcharacterizingfastnodularironcastingmetallographiesbyapplyingasimilaritysearchmethod
AT benatbravo classifyingandcharacterizingfastnodularironcastingmetallographiesbyapplyingasimilaritysearchmethod