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320 Results Found

  • Article
  • Open Access
2 Citations
2,588 Views
16 Pages

Intelligent Online Inspection of the Paste Quality of Prebaked Carbon Anodes Using an Anomaly Detection Algorithm

  • Laiyi Li,
  • Qingzong Li,
  • Wentao Yong,
  • Shuwei Zhang,
  • Maolin Yang and
  • Pingyu Jiang

21 September 2023

Prebaked carbon anodes are a critical consumable in the aluminum electrolysis industry. Prebaked carbon anode paste is the intermediate product of the prebaked carbon anode, and its quality significantly impacts the prebaked carbon anode. Therefore,...

  • Article
  • Open Access
41 Citations
6,521 Views
21 Pages

12 August 2022

Early drone anomaly inspection is vital to ensure the drone’s safety and effectiveness. This process is often overlooked, especially by amateur drone pilots; however, some faulty conditions are difficult to notice by the naked eye or discover,...

  • Article
  • Open Access
4 Citations
2,065 Views
18 Pages

Intelligent Casting Quality Inspection Method Integrating Anomaly Detection and Semantic Segmentation

  • Min-Chieh Chen,
  • Shih-Yu Yen,
  • Yue-Feng Lin,
  • Ming-Yi Tsai and
  • Ting-Hsueh Chuang

13 April 2025

Wind power generation plays an important role in renewable energy, and the core casting components have extremely high requirements for precision and quality. In actual practice, we found that an insufficient workforce limits traditional manual inspe...

  • Article
  • Open Access
138 Citations
12,197 Views
11 Pages

Anomaly Detection Neural Network with Dual Auto-Encoders GAN and Its Industrial Inspection Applications

  • Ta-Wei Tang,
  • Wei-Han Kuo,
  • Jauh-Hsiang Lan,
  • Chien-Fang Ding,
  • Hakiem Hsu and
  • Hong-Tsu Young

12 June 2020

Recently, researchers have been studying methods to introduce deep learning into automated optical inspection (AOI) systems to reduce labor costs. However, the integration of deep learning in the industry may encounter major challenges such as sample...

  • Article
  • Open Access
7 Citations
2,307 Views
15 Pages

25 March 2023

Anomaly detection can improve the service level of the grid, effectively save human resources and reduce the operating cost of a power company. In this study, an improved arithmetic optimization-backpropagation (IAOA-BP) neural algorithm for an anoma...

  • Proceeding Paper
  • Open Access
1 Citations
1,313 Views

23 April 2025

While artificial intelligence has shown promising results for quality inspection, it often requires large training datasets, which are impractical for industrial applications. Defective parts are heavily underrepresented in normal production, which m...

  • Article
  • Open Access
7 Citations
4,207 Views
22 Pages

27 July 2022

Since unqualified products cause enterprise revenue losses, product inspection is essential for maintaining manufacturing quality. An automated optical inspection (AOI) system is an efficient tool for product inspection, providing a convenient interf...

  • Article
  • Open Access
2 Citations
4,340 Views
27 Pages

7 August 2025

Anomaly detection in industrial imaging is critical for ensuring quality and reliability in automated manufacturing processes. While recently several methods have been reported in the literature that have demonstrated impressive detection performance...

  • Article
  • Open Access
73 Citations
14,198 Views
41 Pages

A Software Deep Packet Inspection System for Network Traffic Analysis and Anomaly Detection

  • Wenguang Song,
  • Mykola Beshley,
  • Krzysztof Przystupa,
  • Halyna Beshley,
  • Orest Kochan,
  • Andrii Pryslupskyi,
  • Daniel Pieniak and
  • Jun Su

14 March 2020

In this paper, to solve the problem of detecting network anomalies, a method of forming a set of informative features formalizing the normal and anomalous behavior of the system on the basis of evaluating the Hurst (H) parameter of the network traffi...

  • Article
  • Open Access
32 Citations
5,139 Views
22 Pages

25 June 2021

Quality inspection applications in industry are required to move towards a zero-defect manufacturing scenario, with non-destructive inspection and traceability of 100% of produced parts. Developing robust fault detection and classification models fro...

  • Article
  • Open Access
6 Citations
3,591 Views
13 Pages

Incremental Learning-Based Algorithm for Anomaly Detection Using Computed Tomography Data

  • Hossam A. Gabbar,
  • Oluwabukola Grace Adegboro,
  • Abderrazak Chahid and
  • Jing Ren

In a nuclear power plant (NPP), the used tools are visually inspected to ensure their integrity before and after their use in the nuclear reactor. The manual inspection is usually performed by qualified technicians and takes a large amount of time (w...

  • Review
  • Open Access
7 Citations
3,156 Views
26 Pages

This paper provides an in-depth literature review on image processing techniques, focusing on deep learning approaches for anomaly detection and classification in photovoltaics. It examines key components of UAV-based PV inspection, including data ac...

  • Article
  • Open Access
1 Citations
2,832 Views
26 Pages

29 July 2025

Infrared thermography is a common approach used in building inspection for identifying building envelope thermal anomalies that cause energy loss and occupant thermal discomfort. Detecting these anomalies is essential to improve the thermal performan...

  • Proceeding Paper
  • Open Access
3 Citations
3,334 Views
7 Pages

15 October 2021

Corrosion and maintenance anomaly and integrity management systems (AIMS) are now the foundation of many industrial and engineering systems regarding sustainability and long-lasting assets. The oil and gas industry has started developing new, integra...

  • Article
  • Open Access
255 Citations
11,314 Views
15 Pages

Anomaly Detection in Nanofibrous Materials by CNN-Based Self-Similarity

  • Paolo Napoletano,
  • Flavio Piccoli and
  • Raimondo Schettini

12 January 2018

Automatic detection and localization of anomalies in nanofibrous materials help to reduce the cost of the production process and the time of the post-production visual inspection process. Amongst all the monitoring methods, those exploiting Scanning...

  • Article
  • Open Access
14 Citations
7,734 Views
18 Pages

19 June 2024

Detecting anomalies in texture has become a significant concern across various industrial processes. One prevalent application of this is in inspecting patterned textures, especially in the domain of fabric defect detection, which is a commonly encou...

  • Article
  • Open Access
96 Citations
11,407 Views
21 Pages

Automatic Clearance Anomaly Detection for Transmission Line Corridors Utilizing UAV-Borne LIDAR Data

  • Chi Chen,
  • Bisheng Yang,
  • Shuang Song,
  • Xiangyang Peng and
  • Ronggang Huang

17 April 2018

Transmission line corridor (i.e., Right-of-Ways (ROW)) clearance management plays a critically important role in power line risk management and is an important task of the routine power line inspection of the grid company. The clearance anomaly detec...

  • Article
  • Open Access
2 Citations
3,368 Views
16 Pages

Degradation Model Applied to the Plasterwork of the Palace of Pedro I (Royal Alcazar of Seville)

  • Marta Torres-González,
  • Maria Teresa Freire,
  • F. J. Alejandre,
  • F. J. Blasco-López and
  • Ana Silva

3 January 2023

This study proposes a model to evaluate the overall degradation condition of historical plasterworks in three different locations inside the Royal Alcazar of Seville, Spain. A Severity of Degradation Index (Sw) is proposed to establish a priority of...

  • Article
  • Open Access
1 Citations
3,807 Views
25 Pages

Towards More Accurate Industrial Anomaly Detection: A Component-Level Feature-Enhancement Approach

  • Xiaodong Wang,
  • Zhiyao Xie,
  • Fei Yan,
  • Jiayu Wang,
  • Jiangtao Fan,
  • Zhiqiang Zeng,
  • Junwen Lu,
  • Hangqi Zhang and
  • Nianfeng Zeng

Industrial visual inspection plays a crucial role in intelligent manufacturing. However, existing anomaly-detection methods based on unsupervised learning paradigms often struggle with issues such as overlooking minor defects and blurring component e...

  • Article
  • Open Access
54 Citations
6,742 Views
18 Pages

Region-Based CNN for Anomaly Detection in PV Power Plants Using Aerial Imagery

  • Michiel Vlaminck,
  • Rugen Heidbuchel,
  • Wilfried Philips and
  • Hiep Luong

7 February 2022

Today, solar energy is taking an increasing share of the total energy mix. Unfortunately, many operational photovoltaic plants suffer from a plenitude of defects resulting in non-negligible power loss. The latter highly impacts the overall performanc...

  • Feature Paper
  • Article
  • Open Access
895 Views
31 Pages

4 August 2025

Automated quality control plays a critical role in modern industries, particularly in environments that handle large volumes of packaged products requiring fast, accurate, and consistent inspections. This work presents an anomaly detection system for...

  • Article
  • Open Access
1,897 Views
24 Pages

Zero-Shot Industrial Anomaly Detection via CLIP-DINOv2 Multimodal Fusion and Stabilized Attention Pooling

  • Junjie Jiang,
  • Zongxiang He,
  • Anping Wan,
  • Khalil AL-Bukhaiti,
  • Kaiyang Wang,
  • Peiyi Zhu and
  • Xiaomin Cheng

5 December 2025

Industrial visual inspection demands high-precision anomaly detection amid scarce annotations and unseen defects. This paper introduces a zero-shot framework leveraging multimodal feature fusion and stabilized attention pooling. CLIP’s global s...

  • Article
  • Open Access
1 Citations
3,348 Views
13 Pages

1 January 2023

Many complex electromechanical assemblies that are essential to the vital function of certain products can be time-consuming to inspect to a sufficient level of certainty. Examples include subsystems of machine tools, robots, aircraft, and automobile...

  • Article
  • Open Access
1 Citations
2,155 Views
36 Pages

18 July 2025

Power transmission infrastructure requires continuous inspection to prevent failures and ensure grid stability. UAV-based systems, enhanced with deep learning, have emerged as an efficient alternative to traditional, labor-intensive inspection method...

  • Article
  • Open Access
1,315 Views
21 Pages

Explainable Few-Shot Anomaly Detection for Real-Time Automotive Quality Control

  • Safeh Clinton Mawah,
  • Dagmawit Tadesse Aga,
  • Shahrokh Hatefi,
  • Farouk Smith and
  • Yimesker Yihun

11 October 2025

Automotive manufacturing quality control faces persistent challenges such as limited defect samples, cross-domain variability, and the demand for interpretable decision-making. This work presents an explainable few-shot anomaly detection framework th...

  • Article
  • Open Access
34 Citations
9,615 Views
20 Pages

16 May 2022

With the advent of the 4th Industrial Revolution, research on anomaly detection in the manufacturing process using deep learning and machine vision is being actively conducted. There have been various attempts to innovate the manufacturing site by ad...

  • Article
  • Open Access
10 Citations
4,540 Views
14 Pages

AnomalySeg: Deep Learning-Based Fast Anomaly Segmentation Approach for Surface Defect Detection

  • Yongxian Song,
  • Wenhao Xia,
  • Yuanyuan Li,
  • Hao Li,
  • Minfeng Yuan and
  • Qi Zhang

Product quality inspection is a crucial element of industrial manufacturing, yet flaws such as blemishes and stains frequently emerge after the product is completed. Most research has utilized detection models and avoided segmenting networks due to t...

  • Article
  • Open Access
2,746 Views
27 Pages

Fractals as Pre-Training Datasets for Anomaly Detection and Localization

  • Cynthia I. Ugwu,
  • Emanuele Caruso and
  • Oswald Lanz

Anomaly detection is crucial in large-scale industrial manufacturing as it helps to detect and localize defective parts. Pre-training feature extractors on large-scale datasets is a popular approach for this task. Stringent data security, privacy reg...

  • Article
  • Open Access
1,407 Views
17 Pages

Degradation and Sustainability: Analysis of Structural Issues in the Eduardo Caldeira Bridge, Machico

  • Raul Alves,
  • Sérgio Lousada,
  • José Manuel Naranjo Gómez and
  • José Cabezas

This paper presents a detailed analysis of the severe structural anomalies that led to the urgent rehabilitation of the Eduardo Caldeira Bridge in Machico, Madeira. Situated in a challenging coastal environment with complex volcanic geology, the brid...

  • Article
  • Open Access
12 Citations
4,542 Views
18 Pages

Anomaly Segmentation Based on Depth Image for Quality Inspection Processes in Tire Manufacturing

  • Dongbeom Ko,
  • Sungjoo Kang,
  • Hyunsuk Kim,
  • Wongok Lee,
  • Yousuk Bae and
  • Jeongmin Park

4 November 2021

This paper introduces and implements an efficient training method for deep learning–based anomaly area detection in the depth image of a tire. A depth image of 16 bit integer size is used in various fields, such as manufacturing, industry, and medici...

  • Article
  • Open Access
7 Citations
2,482 Views
16 Pages

30 August 2023

Abnormal formation of girth weld is a major threat to the safe operation of pipelines, which may lead to serious accidents. Therefore, regular inspection and maintenance of girth weld are essential for accident prevention and energy security. This pa...

  • Article
  • Open Access
66 Citations
11,870 Views
22 Pages

Using Convolutional Neural Networks to Automate Aircraft Maintenance Visual Inspection

  • Anil Doğru,
  • Soufiane Bouarfa,
  • Ridwan Arizar and
  • Reyhan Aydoğan

7 December 2020

Convolutional Neural Networks combined with autonomous drones are increasingly seen as enablers of partially automating the aircraft maintenance visual inspection process. Such an innovative concept can have a significant impact on aircraft operation...

  • Article
  • Open Access
7 Citations
3,553 Views
25 Pages

23 June 2022

Fabric anomaly detection (AD) tries to detect anomalies (i.e., defects) in fabrics, and fabric AD approaches are continuously improved with respect to their AD performance. However, developed solutions are known to generalize poorly to previously uns...

  • Article
  • Open Access
9 Citations
4,245 Views
21 Pages

Image-Based Detection of Modifications in Assembled PCBs with Deep Convolutional Autoencoders

  • Diulhio Candido de Oliveira,
  • Bogdan Tomoyuki Nassu and
  • Marco Aurelio Wehrmeister

25 January 2023

In this paper, we introduce a one-class learning approach for detecting modifications in assembled printed circuit boards (PCBs) based on photographs taken without tight control over perspective and illumination conditions. Anomaly detection and segm...

  • Article
  • Open Access
6 Citations
2,626 Views
7 Pages

5 February 2021

This paper proposes a new machine vision method to test the quality of a semi-transparent automotive illuminant component. Difference images of Frangi filtered surface images are used to enhance defect-like image structures. In order to distinguish a...

  • Article
  • Open Access
1 Citations
3,092 Views
22 Pages

29 August 2024

Anomaly detection has gained significant attention with the advancements in deep neural networks. Effective training requires both normal and anomalous data, but this often leads to a class imbalance, as anomalous data is scarce. Traditional augmenta...

  • Article
  • Open Access
18 Citations
6,459 Views
17 Pages

Manufacturing industries require the efficient and voluminous production of high-quality finished goods. In the context of Industry 4.0, visual anomaly detection poses an optimistic solution for automatically controlled product quality with high prec...

  • Article
  • Open Access
22 Citations
4,691 Views
14 Pages

From Anomaly Detection to Defect Classification

  • Jaromír Klarák,
  • Robert Andok,
  • Peter Malík,
  • Ivan Kuric,
  • Mário Ritomský,
  • Ivana Klačková and
  • Hung-Yin Tsai

10 January 2024

This paper proposes a new approach to defect detection system design focused on exact damaged areas demonstrated through visual data containing gear wheel images. The main advantage of the system is the capability to detect a wide range of patterns o...

  • Article
  • Open Access
1 Citations
2,331 Views
15 Pages

18 November 2025

The management of aging infrastructure requires a paradigm shift from routine, time-based inspections to data-driven, condition-based assessment. This paper presents a novel and practical framework for this transition through an in-depth case study o...

  • Article
  • Open Access
816 Views
17 Pages

3 September 2025

Anomaly detection plays a vital role in ensuring product quality and operational safety across various industrial applications, from manufacturing to infrastructure monitoring. However, current methods often struggle with challenges such as limited g...

  • Article
  • Open Access
4 Citations
2,425 Views
18 Pages

16 December 2024

The accurate and timely detection of cyber threats is critical to keeping our online economy and data safe. A key technique in early detection is the classification of unusual patterns of network behaviour, often hidden as low-frequency events within...

  • Article
  • Open Access
6 Citations
4,656 Views
22 Pages

23 November 2023

Unsupervised defect detection methods have garnered substantial attention in industrial defect detection owing to their capacity to circumvent complex fault sample collection. However, these models grapple with establishing a robust boundary between...

  • Proceeding Paper
  • Open Access
1,433 Views
4 Pages

In the field of civil construction, infrared thermography can be used as a tool for inspection of building elements such as facade inspection. The large amount of variables involved in the thermal flow acting on the facade of a building makes it diff...

  • Feature Paper
  • Article
  • Open Access
36 Citations
7,216 Views
19 Pages

4 February 2021

The diagnosis of the building’s façades pathology is extremely important to support rational and technically informed decisions regarding maintenance and rehabilitation actions. With a reliable diagnosis, the probable causes of the anomalies can be c...

  • Review
  • Open Access
14 Citations
4,114 Views
20 Pages

14 August 2022

The increasing number of accidents arising from falling objects from the façade of tall buildings has attracted much attention globally. To regulators, a preventive approach based on a mandatory periodic façade inspection has been deeme...

  • Article
  • Open Access
15 Citations
6,599 Views
15 Pages

Unsupervised Anomaly Detection in Printed Circuit Boards through Student–Teacher Feature Pyramid Matching

  • Venkat Anil Adibhatla,
  • Yu-Chieh Huang,
  • Ming-Chung Chang,
  • Hsu-Chi Kuo,
  • Abhijeet Utekar,
  • Huan-Chuang Chih,
  • Maysam F. Abbod and
  • Jiann-Shing Shieh

20 December 2021

Deep learning methods are currently used in industries to improve the efficiency and quality of the product. Detecting defects on printed circuit boards (PCBs) is a challenging task and is usually solved by automated visual inspection, automated opti...

  • Article
  • Open Access
1 Citations
1,339 Views
14 Pages

21 April 2025

With the ease of acquiring RGB-D images from line-scan 3D cameras and the development of computer vision, anomaly detection is now widely applied to railway inspection. As 2D anomaly detection is susceptible to capturing condition, a combination of d...

  • Article
  • Open Access
5 Citations
2,842 Views
24 Pages

Utilizing Deep Learning for Defect Inspection in Hand Tool Assembly

  • Hong-Dar Lin,
  • Cheng-Kai Jheng,
  • Chou-Hsien Lin and
  • Hung-Tso Chang

4 June 2024

The integrity of product assembly in the precision assembly industry significantly influences the quality of the final products. During the assembly process, products may acquire assembly defects due to personnel oversight. A severe assembly defect c...

  • Article
  • Open Access
17 Citations
3,994 Views
20 Pages

Unsupervised Machine Learning for Missing Clamp Detection from an In-Service Train Using Differential Eddy Current Sensor

  • Praneeth Chandran,
  • Florian Thiery,
  • Johan Odelius,
  • Håkan Lind and
  • Matti Rantatalo

17 January 2022

The rail fastening system plays a crucial role in railway tracks as it ensures operational safety by fixing the rail on to the sleeper. Early detection of rail fastener system defects is crucial to ensure track safety and to enable maintenance optimi...

  • Article
  • Open Access
19 Citations
6,094 Views
23 Pages

17 March 2018

Aerial robots with cameras on board can be used in surface inspection to observe areas that are difficult to reach by other means. In this type of problem, it is desirable for aerial robots to have a high degree of autonomy. A way to provide more aut...

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