Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips

Steel strip acts as a fundamental material for the steel industry. Surface defects threaten the steel quality and cause substantial economic and reputation losses. Roll marks, always occurring periodically in a large area, are put on the top of the list of the most serious defects by steel mills. Es...

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Main Authors: Qiwu Luo, Weiqiang Jiang, Jiaojiao Su, Jiaqiu Ai, Chunhua Yang
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/21/21/7264
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author Qiwu Luo
Weiqiang Jiang
Jiaojiao Su
Jiaqiu Ai
Chunhua Yang
author_facet Qiwu Luo
Weiqiang Jiang
Jiaojiao Su
Jiaqiu Ai
Chunhua Yang
author_sort Qiwu Luo
collection DOAJ
description Steel strip acts as a fundamental material for the steel industry. Surface defects threaten the steel quality and cause substantial economic and reputation losses. Roll marks, always occurring periodically in a large area, are put on the top of the list of the most serious defects by steel mills. Essentially, the online roll mark detection is a tiny target inspection task in high-resolution images captured under harsh environment. In this paper, a novel method—namely, Smoothing Complete Feature Pyramid Networks (SCFPN)—is proposed for the above focused task. In particular, the concept of complete intersection over union (CIoU) is applied in feature pyramid networks to obtain faster fitting speed and higher prediction accuracy by suppressing the vanishing gradient in training process. Furthermore, label smoothing is employed to promote the generalization ability of model. In view of lack of public surface image database of steel strips, a raw defect database of hot-rolled steel strip surface, CSU_STEEL, is opened for the first time. Experiments on two public databases (DeepPCB and NEU) and one fresh texture database (CSU_STEEL) indicate that our SCFPN yields more competitive results than several prestigious networks—including Faster R-CNN, SSD, YOLOv3, YOLOv4, FPN, DIN, DDN, and CFPN.
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spelling doaj.art-12af86a8f1bb42089597c5ce70089c8a2023-11-22T21:39:02ZengMDPI AGSensors1424-82202021-10-012121726410.3390/s21217264Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel StripsQiwu Luo0Weiqiang Jiang1Jiaojiao Su2Jiaqiu Ai3Chunhua Yang4School of Automation, Central South University, Changsha 430006, ChinaSchool of Automation, Central South University, Changsha 430006, ChinaSchool of Automation, Central South University, Changsha 430006, ChinaSchool of Computer Science and Information Engineering, Hefei University of Technology, Hefei 230009, ChinaSchool of Automation, Central South University, Changsha 430006, ChinaSteel strip acts as a fundamental material for the steel industry. Surface defects threaten the steel quality and cause substantial economic and reputation losses. Roll marks, always occurring periodically in a large area, are put on the top of the list of the most serious defects by steel mills. Essentially, the online roll mark detection is a tiny target inspection task in high-resolution images captured under harsh environment. In this paper, a novel method—namely, Smoothing Complete Feature Pyramid Networks (SCFPN)—is proposed for the above focused task. In particular, the concept of complete intersection over union (CIoU) is applied in feature pyramid networks to obtain faster fitting speed and higher prediction accuracy by suppressing the vanishing gradient in training process. Furthermore, label smoothing is employed to promote the generalization ability of model. In view of lack of public surface image database of steel strips, a raw defect database of hot-rolled steel strip surface, CSU_STEEL, is opened for the first time. Experiments on two public databases (DeepPCB and NEU) and one fresh texture database (CSU_STEEL) indicate that our SCFPN yields more competitive results than several prestigious networks—including Faster R-CNN, SSD, YOLOv3, YOLOv4, FPN, DIN, DDN, and CFPN.https://www.mdpi.com/1424-8220/21/21/7264surface defect detectionroll markshot-rolled steelfeature pyramid networks (FPN)
spellingShingle Qiwu Luo
Weiqiang Jiang
Jiaojiao Su
Jiaqiu Ai
Chunhua Yang
Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
Sensors
surface defect detection
roll marks
hot-rolled steel
feature pyramid networks (FPN)
title Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
title_full Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
title_fullStr Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
title_full_unstemmed Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
title_short Smoothing Complete Feature Pyramid Networks for Roll Mark Detection of Steel Strips
title_sort smoothing complete feature pyramid networks for roll mark detection of steel strips
topic surface defect detection
roll marks
hot-rolled steel
feature pyramid networks (FPN)
url https://www.mdpi.com/1424-8220/21/21/7264
work_keys_str_mv AT qiwuluo smoothingcompletefeaturepyramidnetworksforrollmarkdetectionofsteelstrips
AT weiqiangjiang smoothingcompletefeaturepyramidnetworksforrollmarkdetectionofsteelstrips
AT jiaojiaosu smoothingcompletefeaturepyramidnetworksforrollmarkdetectionofsteelstrips
AT jiaqiuai smoothingcompletefeaturepyramidnetworksforrollmarkdetectionofsteelstrips
AT chunhuayang smoothingcompletefeaturepyramidnetworksforrollmarkdetectionofsteelstrips