Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase

Vision technologies are used in both industrial and smart city applications in order to provide advanced value products due to embedded self-monitoring and assessment services. In addition, for the full utilization of the obtained data, deep learning is now suggested for use. To this end, the curren...

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Main Authors: Alexios Papacharalampopoulos, Konstantinos Tzimanis, Kyriakos Sabatakakis, Panagiotis Stavropoulos
Format: Article
Language:English
Published: MDPI AG 2020-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/19/5481
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author Alexios Papacharalampopoulos
Konstantinos Tzimanis
Kyriakos Sabatakakis
Panagiotis Stavropoulos
author_facet Alexios Papacharalampopoulos
Konstantinos Tzimanis
Kyriakos Sabatakakis
Panagiotis Stavropoulos
author_sort Alexios Papacharalampopoulos
collection DOAJ
description Vision technologies are used in both industrial and smart city applications in order to provide advanced value products due to embedded self-monitoring and assessment services. In addition, for the full utilization of the obtained data, deep learning is now suggested for use. To this end, the current work presents the implementation of image recognition techniques alongside the original the quality assessment of a Parabolic Trough Collector (PTC) reflector surface to locate and identify surface irregularities by classifying images as either acceptable or non-acceptable. The method consists of a three-step solution that promotes an affordable implementation in a relatively small time period. More specifically, a 3D Computer Aided Design (CAD) of the PTC was used for the pre-training of neural networks, while an aluminum reflector surface was used to verify algorithm performance. The results are promising, as this method proved applicable in cases where the actual part was manufactured in small batches or under the concept of customized manufacturing. Consequently, the algorithm is capable of being trained with a limited number of data.
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spelling doaj.art-df49ba7912614747bfe180ec38b078302023-11-20T15:00:29ZengMDPI AGSensors1424-82202020-09-012019548110.3390/s20195481Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use PhaseAlexios Papacharalampopoulos0Konstantinos Tzimanis1Kyriakos Sabatakakis2Panagiotis Stavropoulos3Laboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, 265 04 Patras, GreeceLaboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, 265 04 Patras, GreeceLaboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, 265 04 Patras, GreeceLaboratory for Manufacturing Systems and Automation, Department of Mechanical Engineering and Aeronautics, University of Patras, 265 04 Patras, GreeceVision technologies are used in both industrial and smart city applications in order to provide advanced value products due to embedded self-monitoring and assessment services. In addition, for the full utilization of the obtained data, deep learning is now suggested for use. To this end, the current work presents the implementation of image recognition techniques alongside the original the quality assessment of a Parabolic Trough Collector (PTC) reflector surface to locate and identify surface irregularities by classifying images as either acceptable or non-acceptable. The method consists of a three-step solution that promotes an affordable implementation in a relatively small time period. More specifically, a 3D Computer Aided Design (CAD) of the PTC was used for the pre-training of neural networks, while an aluminum reflector surface was used to verify algorithm performance. The results are promising, as this method proved applicable in cases where the actual part was manufactured in small batches or under the concept of customized manufacturing. Consequently, the algorithm is capable of being trained with a limited number of data.https://www.mdpi.com/1424-8220/20/19/5481defect detectionvision techniquesimage recognitionneural networksparabolic reflectorsurface monitoring
spellingShingle Alexios Papacharalampopoulos
Konstantinos Tzimanis
Kyriakos Sabatakakis
Panagiotis Stavropoulos
Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
Sensors
defect detection
vision techniques
image recognition
neural networks
parabolic reflector
surface monitoring
title Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
title_full Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
title_fullStr Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
title_full_unstemmed Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
title_short Deep Quality Assessment of a Solar Reflector Based on Synthetic Data: Detecting Surficial Defects from Manufacturing and Use Phase
title_sort deep quality assessment of a solar reflector based on synthetic data detecting surficial defects from manufacturing and use phase
topic defect detection
vision techniques
image recognition
neural networks
parabolic reflector
surface monitoring
url https://www.mdpi.com/1424-8220/20/19/5481
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