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  • Article
  • Open Access
8 Citations
3,083 Views
14 Pages

An Identification and Localization Method for 3D Workpiece Welds Based on the DBSCAN Point Cloud Clustering Algorithm

  • Nian Zhou,
  • Ping Jiang,
  • Shiliang Jiang,
  • Leshi Shu,
  • Xiaoxian Ni and
  • Linjun Zhong

With the development of robotic welding automation, there is a strong interest in welding seam identification and localization methods with high accuracy, real-time performance, and robustness. This paper proposed a 3D workpiece weld identification a...

  • Article
  • Open Access
3 Citations
2,346 Views
17 Pages

Temporal Resolution of Acoustic Process Emissions for Monitoring Joint Gap Formation in Laser Beam Butt Welding

  • Sayako Kodera,
  • Leander Schmidt,
  • Florian Römer,
  • Klaus Schricker,
  • Saichand Gourishetti,
  • David Böttger,
  • Tanja Krüger,
  • András Kátai,
  • Benjamin Straß and
  • Jean Pierre Bergmann
  • + 1 author

21 September 2023

With the increasing power and speed of laser welding, in-process monitoring has become even more crucial to ensure process stability and weld quality. Due to its low cost and installation flexibility, acoustic process monitoring is a promising method...

  • Article
  • Open Access
12 Citations
6,564 Views
20 Pages

Detection and Identification of Expansion Joint Gap of Road Bridges by Machine Learning Using Line-Scan Camera Images

  • In Bae Kim,
  • Jun Sang Cho,
  • Goang Seup Zi,
  • Beom Seok Cho,
  • Seon Min Lee and
  • Hyoung Uk Kim

Recently, the lack of expansion joint gaps on highway bridges in Korea has been increasing. In particular, with the increase in the number of days during the summer heatwave, the narrowing of the expansion joint gap causes symptoms such as expansion...

  • Article
  • Open Access
3 Citations
2,483 Views
14 Pages

10 March 2022

An analysis method for the detectability of defects on the TC4 (Ti-6Al-4V) diffusion bonding interface was proposed in this study. First, a semi-analytical model of the liquid–solid coupling acoustic field with attenuation characteristics was c...

  • Feature Paper
  • Article
  • Open Access
4 Citations
2,599 Views
14 Pages

Monitoring of Joint Gap Formation in Laser Beam Butt Welding using Neural Network-Based Acoustic Emission Analysis

  • Saichand Gourishetti,
  • Leander Schmidt,
  • Florian Römer,
  • Klaus Schricker,
  • Sayako Kodera,
  • David Böttger,
  • Tanja Krüger,
  • András Kátai,
  • Joachim Bös and
  • Jean Pierre Bergmann
  • + 2 authors

29 September 2023

This study aimed to explore the feasibility of using airborne acoustic emission in laser beam butt welding for the development of an automated classification system based on neural networks. The focus was on monitoring the formation of joint gaps dur...

  • Article
  • Open Access
61 Citations
6,675 Views
18 Pages

A Vision Based Detection Method for Narrow Butt Joints and a Robotic Seam Tracking System

  • Boce Xue,
  • Baohua Chang,
  • Guodong Peng,
  • Yanjun Gao,
  • Zhijie Tian,
  • Dong Du and
  • Guoqing Wang

6 March 2019

Automatic joint detection is of vital importance for the teaching of robots before welding and the seam tracking during welding. For narrow butt joints, the traditional structured light method may be ineffective, and many existing detection methods d...

  • Article
  • Open Access
1 Citations
7,687 Views
13 Pages

15 August 2012

High-resolution positioning for maglev trains is implemented by detecting the tooth-slot structure of the long stator installed along the rail, but there are large joint gaps between long stator sections. When a positioning sensor is below a large jo...

  • Article
  • Open Access
2 Citations
3,513 Views
18 Pages

8 May 2020

Web-core sandwich panels have gained the popularity in various fields, especially aviation and shipbuilding, etc. Penetration welding was considered as an effective process to manufacture such a structure through a T-joint. To ensure the formation qu...

  • Article
  • Open Access
364 Views
34 Pages

7 January 2026

To enhance the overall quality and consistency of depth maps, Digital Surface Models (DSM), and True Digital Orthophoto Map (TDOM) in UAV image reconstruction, this paper proposes a multi-stage adaptive optimization generation method. First, to addre...

  • Article
  • Open Access
8 Citations
3,526 Views
27 Pages

Path Planning for Self-Collision Avoidance of Space Modular Self-Reconfigurable Satellites

  • Jiping An,
  • Xinhong Li,
  • Zhibin Zhang,
  • Guohui Zhang,
  • Wanxin Man,
  • Gangxuan Hu and
  • Junwei He

Space modular self-reconfigurable satellite (SMSRS) is a new type of satellite. The research on self-collision avoidance of SMSRS is important for its on-orbit safety but is not completely solved. This paper offers a new method for joint path plannin...

  • Article
  • Open Access
28 Citations
8,795 Views
23 Pages

Gravitation-Based Edge Detection in Hyperspectral Images

  • Genyun Sun,
  • Aizhu Zhang,
  • Jinchang Ren,
  • Jingsheng Ma,
  • Peng Wang,
  • Yuanzhi Zhang and
  • Xiuping Jia

11 June 2017

Edge detection is one of the key issues in the field of computer vision and remote sensing image analysis. Although many different edge-detection methods have been proposed for gray-scale, color, and multispectral images, they still face difficulties...

  • Article
  • Open Access
7 Citations
2,225 Views
14 Pages

10 September 2022

Transmission line inspection plays an important role in maintaining power security. In the object detection of the transmission line, the large-scale gap of the fittings is still a main and negative factor in affecting the detection accuracy. In this...

  • Review
  • Open Access
20 Citations
4,662 Views
13 Pages

30 December 2023

Haemophilic arthropathy (HA) is one of the most serious complications of haemophilia. It starts with joint bleeding, leading to synovitis which, in turn, can cause damage to the cartilage and subchondral bone, eventually inducing degenerative joint d...

  • Article
  • Open Access
14 Citations
3,573 Views
13 Pages

12 March 2020

This study focused on correlation analysis between welding quality and sound-signal features collected during microlaser welding. The study provides promising features for developing a monitoring system that detects low joint strength caused by a gap...

  • Article
  • Open Access
7 Citations
2,691 Views
20 Pages

27 April 2021

Electroluminescence (EL) measurements allow one to detect damages and/or defective parts in photovoltaic systems. In principle, it seems possible to predict the complete current/voltage curve from such pictures even automatically. However, such a pre...

  • Article
  • Open Access
23 Citations
4,162 Views
19 Pages

28 April 2022

High-resolution traffic data, comprising trajectories of individual road users, are of great importance to the development of Intelligent Transportation Systems (ITS), in which they can be used for traffic microsimulations and applications such as co...

  • Article
  • Open Access
4 Citations
2,403 Views
11 Pages

11 March 2024

Diffusion bonding technology is widely used in the connection of precision components, yet accurately and reliably detecting contact-type defects on the bond interface still remains a significant problem. Nonlinear ultrasonic methods have been proven...

  • Article
  • Open Access
11 Citations
3,615 Views
9 Pages

Joint Probabilistic-Nyquist Pulse Shaping for an LDPC-Coded 8-PAM Signal in DWDM Data Center Communications

  • Xiao Han,
  • Mingwei Yang,
  • Ivan B. Djordjevic,
  • Yang Yue,
  • Qiang Wang,
  • Zhen Qu and
  • Jon Anderson

20 November 2019

M-ary pulse-amplitude modulation (PAM) meets the requirements of data center communication because of its simplicity, but coarse entropy granularity cannot meet the dynamic bandwidth demands, and there is a large capacity gap between uniform formats...

  • Article
  • Open Access
1 Citations
3,218 Views
14 Pages

Speaker Verification Based on Channel Attention and Adaptive Joint Loss

  • Houbin Fan,
  • Jun Li,
  • Fengpei Ge and
  • Chunyan Liang

In deep learning-based speaker verification, the loss function plays a crucial role. Most systems rely on a single loss function, or simply sum multiple losses with manually adjusted weights, increasing experimental complexity and failing to fully le...

  • Feature Paper
  • Article
  • Open Access
21 Citations
4,570 Views
15 Pages

Closing the Wearable Gap—Part III: Use of Stretch Sensors in Detecting Ankle Joint Kinematics During Unexpected and Expected Slip and Trip Perturbations

  • Harish Chander,
  • Ethan Stewart,
  • David Saucier,
  • Phuoc Nguyen,
  • Tony Luczak,
  • John E. Ball,
  • Adam C. Knight,
  • Brian K. Smith,
  • Reuben F. Burch V and
  • R. K. Prabhu

24 September 2019

Background: An induced loss of balance resulting from a postural perturbation has been reported as the primary source for postural instability leading to falls. Hence; early detection of postural instability with novel wearable sensor-based measures...

  • Article
  • Open Access
18 Citations
4,711 Views
13 Pages

Determining the Online Measurable Input Variables in Human Joint Moment Intelligent Prediction Based on the Hill Muscle Model

  • Baoping Xiong,
  • Nianyin Zeng,
  • Yurong Li,
  • Min Du,
  • Meilan Huang,
  • Wuxiang Shi,
  • Guojun Mao and
  • Yuan Yang

21 February 2020

Introduction: Human joint moment is a critical parameter to rehabilitation assessment and human-robot interaction, which can be predicted using an artificial neural network (ANN) model. However, challenge remains as lack of an effective approach to d...

  • Article
  • Open Access
4 Citations
3,586 Views
13 Pages

In industrial applications, multi-material joints are becoming increasingly important to achieve a sustainable and resource-saving production. Not only high mechanical properties during the component use have to be given, but also possibilities to se...

  • Article
  • Open Access
5 Citations
2,153 Views
15 Pages

17 November 2021

This paper is devoted to the development of a numerical approach that allows quick detection of the conditions favorable for the beginning of noticeable vibrations during drilling. The main novelty of the proposed approach lies in taking into account...

  • Article
  • Open Access
3,234 Views
25 Pages

This study presents a systematic optimization of GTAW welding parameters to achieve a pipe-to-pipe butt weld with a root height consistently below 2 mm when joining stainless-steel 316L material, employing the Taguchi design of experiments. To the au...

  • Article
  • Open Access
2,043 Views
12 Pages

Region Collaborative Network for Detection-Based Vision-Language Understanding

  • Linyan Li,
  • Kaile Du,
  • Minming Gu,
  • Fuyuan Hu and
  • Fan Lyu

30 August 2022

Given a query language, a Detection-based Vision-Language Understanding (DVLU) system needs to respond based on the detected regions (i.e.,bounding boxes). With the significant advancement in object detection, DVLU has witnessed great improvements in...

  • Article
  • Open Access
45 Citations
15,211 Views
19 Pages

A Computer Vision-Based Automatic System for Egg Grading and Defect Detection

  • Xiao Yang,
  • Ramesh Bahadur Bist,
  • Sachin Subedi and
  • Lilong Chai

19 July 2023

Defective eggs diminish the value of laying hen production, particularly in cage-free systems with a higher incidence of floor eggs. To enhance quality, machine vision and image processing have facilitated the development of automated grading and def...

  • Review
  • Open Access
52 Citations
8,915 Views
15 Pages

Etiology, Epizootiology and Control of Maedi-Visna in Dairy Sheep: A Review

  • Aphrodite I. Kalogianni,
  • Ioannis Bossis,
  • Loukia V. Ekateriniadou and
  • Athanasios I. Gelasakis

3 April 2020

Maedi-visna (MV) in sheep is caused by maedi-visna virus (MVV), a small ruminant lentivirus (SRLV) that causes chronic infection and inflammatory lesions in infected animals. Pneumonia and mastitis are its predominant clinical manifestations, and the...

  • Article
  • Open Access
26 Citations
7,180 Views
20 Pages

14 December 2021

With the proliferation of Unmanned Aerial Vehicles (UAVs) to provide diverse critical services, such as surveillance, disaster management, and medicine delivery, the accurate detection of these small devices and the efficient classification of their...

  • Article
  • Open Access
1 Citations
1,774 Views
18 Pages

Rail Surface Defect Diagnosis Based on Image–Vibration Multimodal Data Fusion

  • Zhongmei Wang,
  • Shenao Peng,
  • Wenxiu Ao,
  • Jianhua Liu and
  • Changfan Zhang

To address the challenges in existing multi-sensor data fusion methods for rail surface defect diagnosis, particularly their limitations in fully exploiting potential synergistic information among multimodal data and effectively bridging the semantic...

  • Article
  • Open Access
2 Citations
1,393 Views
19 Pages

16 March 2025

Gouty arthritis (GA) and its association with kidney failure present significant challenges in healthcare, necessitating effective detection and management strategies. GA, characterized by the deposition of monosodium urate crystals in joints and oth...

  • Article
  • Open Access
2 Citations
2,879 Views
15 Pages

13 October 2023

In driverless systems (scenarios such as subways, buses, trucks, etc.), multi-modal data fusion, such as light detection and ranging (LiDAR) points and camera images, is essential for accurate 3D object detection. In the fusion process, the informati...

  • Article
  • Open Access
77 Citations
9,680 Views
21 Pages

14 May 2017

In current remote sensing literature, the problems of sea-land segmentation and ship detection (including in-dock ships) are investigated separately despite the high correlation between them. This inhibits joint optimization and makes the implementat...

  • Article
  • Open Access
25 Citations
5,569 Views
17 Pages

Dual-Polarized L-Band SAR Imagery for Temporal Monitoring of Marine Oil Slick Concentration

  • Sébastien Angelliaume,
  • Olivier Boisot and
  • Charles-Antoine Guérin

25 June 2018

SAR sensors are usually used in the offshore domain to detect marine oil slicks which allows the authorities to guide cleanup operations or prosecute polluters. As radar imagery can be used any time of day or year and in almost any weather conditions...

  • Article
  • Open Access
25 Citations
5,487 Views
17 Pages

Creative tourism is a novel segment of the tourism market that may turn into a great opportunity for small cities to attract visitors. Thus, it can be a possible economic and social driver for local development. Despite its potentiality, not much emp...

  • Article
  • Open Access
3 Citations
3,285 Views
16 Pages

Social Inequality in Popular Neighborhoods: A Pre- and Post-Pandemic Perspective from Joint Accessibility

  • Jorge Gallego Méndez,
  • Lina M. García-Moreno,
  • Jackeline Murillo-Hoyos and
  • Ciro Jaramillo Molina

5 July 2023

The existence of barriers to accessing essential urban opportunities leads to differentiated use of the territory, which can generate social fragmentation. Several authors highlight the role of public transportation services for reducing inequality g...

  • Article
  • Open Access
18 Citations
3,803 Views
13 Pages

Analysis of Acoustic Emission (AE) Signals for Quality Monitoring of Laser Lap Microwelding

  • Ming-Chyuan Lu,
  • Shean-Juinn Chiou,
  • Bo-Si Kuo and
  • Ming-Zong Chen

30 July 2021

In this study, the correlation between welding quality and features of acoustic emission (AE) signals collected during laser microwelding of stainless-steel sheets was analyzed. The performance of selected AE features for detecting low joint bonding...

  • Article
  • Open Access
28 Citations
5,483 Views
23 Pages

30 October 2022

Ships comprise the only and most important ocean transportation mode. Thus, ship detection is one of the most critical technologies in ship monitoring, which plays an essential role in maintaining marine safety. Optical remote-sensing images contain...

  • Article
  • Open Access
4 Citations
3,715 Views
14 Pages

On Welding of High-Strength Steels Using Laser Beam Welding and Resistance Spot Weld Bonding with Emphasis on Seam Leak Tightness

  • Tobias Schmolke,
  • Christian Brunner-Schwer,
  • Max Biegler,
  • Michael Rethmeier and
  • Gerson Meschut

The design of most electric vehicles provides for the positioning of the heavy energy storage units in the underbody of the cars. In addition to crash safety, the battery housing has to meet high requirements for gas tightness. In order to test the u...

  • Review
  • Open Access
5 Citations
1,903 Views
25 Pages

The rapid evolution of deep learning (DL) has fundamentally transformed the paradigm for detecting special components in agricultural products, addressing critical challenges in food safety, quality control, and precision agriculture. This comprehens...

  • Feature Paper
  • Article
  • Open Access
1 Citations
1,002 Views
19 Pages

Shielding Effect of Rubber Disbond on DCVG Signal Magnitude for Coating Defect Detection in Pipes Buried in Soil: A Simulation Analysis

  • Young-Ran Yoo,
  • Seung-Heon Choi,
  • Ki-Tae Kim,
  • Bu-Teak Lim,
  • Dae-Young Lee,
  • Young-Cheon Kim and
  • Young-Sik Kim

24 April 2025

Many pipelines are buried and operated underground in nuclear and chemical plants. Since these pipelines are welded on-site and subsequently coated, ensuring the integrity of these coatings is crucial. Over time, rubber coatings can disbond due to fa...

  • Article
  • Open Access
1 Citations
891 Views
14 Pages

PriKMet: Prior-Guided Pointer Meter Reading for Automated Substation Inspections

  • Haidong Chu,
  • Jun Feng,
  • Yidan Wang,
  • Weizhen He,
  • Yunfeng Yan and
  • Donglian Qi

11 August 2025

Despite the rapid advancement of smart-grid technologies, automated pointer meter reading in power substations remains a persistent challenge due to complex electromagnetic interference and dynamic field conditions. Traditional computer vision method...

  • Article
  • Open Access
2 Citations
1,546 Views
16 Pages

15 August 2024

Hydraulic tomography (HT) is a promising technique for high-resolution imaging of subsurface heterogeneity, which addresses the limitations of traditional methods, such as borehole drilling and geophysical surveys. This study focuses on the applicati...

  • Review
  • Open Access
13 Citations
6,204 Views
23 Pages

Emerging Issues and Initial Insights into Bacterial Biofilms: From Orthopedic Infection to Metabolomics

  • Rasoul Mirzaei,
  • Davide Campoccia,
  • Stefano Ravaioli and
  • Carla Renata Arciola

13 February 2024

Bacterial biofilms, enigmatic communities of microorganisms enclosed in an extracellular matrix, still represent an open challenge in many clinical contexts, including orthopedics, where biofilm-associated bone and joint infections remain the main ca...

  • Review
  • Open Access
5 Citations
3,724 Views
18 Pages

Animal Models in Rheumatoid Arthritis: Is There a Correlation Between Autoantibodies in Human Pathology and Animal Models?

  • Miguel Marco-Bonilla,
  • Maria Fresnadillo,
  • Macarena de la Riva-Bueno,
  • Gabriel Herrero-Beaumont,
  • Raquel Largo and
  • Aránzazu Mediero

24 April 2025

RA is a chronic autoimmune disease characterized by synovial inflammation and joint damage, driven by autoantibodies such as ACPA, anti-CarP and RF. These autoantibodies, influenced by genetic and environmental factors, play a crucial role in RA path...

  • Article
  • Open Access
406 Views
27 Pages

9 February 2026

Accurate object detection in underwater environments is severely challenged by light attenuation, wavelength-dependent color distortion, and scattering-induced turbidity, which create a substantial domain gap between terrestrial and underwater imager...

  • Article
  • Open Access
11 Citations
3,525 Views
20 Pages

30 April 2021

Global surface water classification layers, such as the European Joint Research Centre’s (JRC) Monthly Water History dataset, provide a starting point for accurate and large scale analyses of trends in waterbody extents. On the local scale, there is...

  • Review
  • Open Access
851 Views
44 Pages

A Review of Grout Diffusion Mechanisms and Quality Assessment Techniques for Backfill Grouting in Shield Tunnels

  • Chi Zhu,
  • Jinyang Fu,
  • Haoyu Wang,
  • Yiqian Xia,
  • Junsheng Yang and
  • Shuying Wang

25 December 2025

Ground settlement is readily induced by shield–tail gaps formed during tunneling, where soil loss must be compensated through backfill grouting. However, improper grouting control may trigger tunnel uplift, segment misalignment, and, after soli...

  • Case Report
  • Open Access
2 Citations
3,518 Views
7 Pages

Tibial Plateau Leveling Osteotomy following Tibial Tuberosity Advancement Cage Removal: A Case Report

  • Yauheni Zhalniarovich,
  • Marta Mieszkowska and
  • Magdalena Morawska-Kozłowska

8 November 2023

The purpose of this case report is to describe the functional and clinical outcome of a tibial plateau leveling osteotomy (TPLO) in a dog with joint instability and persistent lameness following a Tibial Tuberosity Advancement surgery (TTA) Rapid. A...

  • Article
  • Open Access
3 Citations
999 Views
21 Pages

12 July 2025

Canopy gaps are vital microhabitats for forest carbon cycling and species regeneration, whose accurate extraction is crucial for ecological modeling and smart forestry. However, traditional monitoring methods have notable limitations: ground-based me...

  • Article
  • Open Access
37 Citations
10,226 Views
14 Pages

Vehicle Detection and Tracking Using Thermal Cameras in Adverse Visibility Conditions

  • Abhay Singh Bhadoriya,
  • Vamsi Vegamoor and
  • Sivakumar Rathinam

17 June 2022

Level 5 autonomy, as defined by the Society of Automotive Engineers, requires the vehicle to function under all weather and visibility conditions. This sensing problem becomes significantly challenging in weather conditions that include events such a...

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