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294 Results Found

  • Article
  • Open Access
11 Views
24 Pages

8 November 2026

Adapting monocular metric depth to agricultural imagery requires balancing target-domain accuracy against the scope of model updates and embedded execution cost. We evaluate SARE-Depth on CitrusFarm using a frozen teacher-guided Depth Anything V2 Sma...

(This article belongs to the Special Issue Edge AI and Embedded Computer Vision for Real-Time Agricultural Automation)
  • Article
  • Open Access
1 Citations
659 Views
17 Pages

22 April 2026

Thermal monocular depth estimation can provide more robust depth predictions than RGB-based methods under nighttime and adverse weather conditions. However, when trained with projected LiDAR supervision, depth models often retain structural errors in...

(This article belongs to the Special Issue Information Retrieval: From Theory to Applications)
  • Article
  • Open Access
373 Views
17 Pages

RG-RGD: Task-Triggered Small-Target RGB-D Depth Refinement for Robotic Laser Ablation

  • Bowen Si,
  • Dayong Ning,
  • Jiaoyi Hou,
  • Yongjun Gong and ,
  • Ming Yi,
  • Fengrui Zhang and
  • Zhilei Liu
  • + 2 authors+ 0 author

25 July 2026

Robotic 3D manipulation of small targets, such as laser ablation of urban-tree fruit balls, requires locally reliable depth. Mainstream RGB-D depth-refinement methods usually optimize image-wide metrics, which can leave task-relevant regions under-re...

(This article belongs to the Section Robotics, Mechatronics and Intelligent Machines)
  • Article
  • Open Access
485 Views
16 Pages

LiDAR sensors provide reliable physical distance measurements using laser signals, enabling accurate acquisition of 3D information for various optical systems. However, they are costly, require significant weight and space, and their reliability and...

(This article belongs to the Special Issue Diffractive Optics: From Fundamentals to Applications)
  • Article
  • Open Access
508 Views
17 Pages

In this paper, we propose a novel Depth from Focus (DFF) framework that formulates depth estimation as an energy minimization problem and unrolls the corresponding iterative optimization into a trainable neural architecture. Given a focal stack, a de...

(This article belongs to the Special Issue Image/Video Processing and Computer Vision)
  • Article
  • Open Access
9 Citations
4,910 Views
20 Pages

20 November 2018

A depth estimation has been widely studied with the emergence of a Lytro camera. However, skin depth estimation using a Lytro camera is too sensitive to the influence of illumination due to its low image quality, and thus, when three-dimensional reco...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
2 Citations
2,055 Views
26 Pages

Development of Laser Underwater Transmission Model from Maximum Water Depth Perspective

  • Guoqing Zhou,
  • Kun Li,
  • Jian Gao,
  • Junyun Ma and ,
  • Ertao Gao,
  • Yanling Lu,
  • Jiasheng Xu and
  • Xiao Zhou
  • + 3 authors+ 0 author

7 June 2025

The traditional method for the establishment of the green laser underwater transmission model is purely based on the laser transmission mechanism in waterbodies, while neglecting a few exterior conditions. This paper proposes a novel method to establ...

  • Article
  • Open Access
12 Citations
3,690 Views
10 Pages

Effective Surface Nano-Crystallization of Ni2FeCoMo0.5V0.2 Medium Entropy Alloy by Rotationally Accelerated Shot Peening (RASP)

  • Ningning Liang,
  • Xiang Wang,
  • Yang Cao,
  • Yusheng Li and ,
  • Yuntian Zhu and
  • Yonghao Zhao
  • + 1 author+ 0 author

24 September 2020

The surface nano-crystallization of Ni2FeCoMo0.5V0.2 medium-entropy alloy was realized by rotationally accelerated shot peening (RASP). The average grain size at the surface layer is ~37 nm, and the nano-grained layer is as thin as ~20 μm. Transmi...

(This article belongs to the Special Issue Entropy Based Fatigue, Fracture, Failure Prediction and Structural Health Monitoring)
  • Article
  • Open Access
2 Citations
2,325 Views
23 Pages

The direct energy deposition arc process is widely used for fabricating medium and large components with moderate geometric complexity but often results in coarse microstructures and inconsistent hardness. This study introduces a hybrid manufacturing...

  • Article
  • Open Access
24 Citations
6,560 Views
18 Pages

20 March 2018

Microstructural evolution and wear performance of Tantalum (Ta) treated by ultrasonic nanocrystalline surface modification (UNSM) at 25 and 1000 °C were reported. The UNSM treatment modified a surface along with subsurface layer with a thickness in t...

(This article belongs to the Special Issue Surface Modification to Improve Properties of Materials)
  • Technical Note
  • Open Access
11 Citations
4,230 Views
14 Pages

22 September 2020

Synthetic aperture radar (SAR) altimeters represent a new method of microwave remote sensing for ocean wave observations. The adoption of SAR technology in the azimuthal direction has the advantage of a high resolution. The Sentinel-3 altimeter is th...

(This article belongs to the Special Issue Feature Paper Special Issue on Ocean Remote Sensing)
  • Article
  • Open Access
4 Citations
2,091 Views
12 Pages

Effect of Alternating Magnetic Field Intensity on Microstructure and Corrosion Properties of Deposited Metal in 304 Stainless Steel TIG Welding

  • Jinjie Wang,
  • Jiayi Li,
  • Haokai Wang,
  • Zan Ju and ,
  • Juan Fu,
  • Yong Zhao and
  • Qianhao Zang
  • + 2 authors+ 0 author

6 July 2025

Stainless steel, due to its exceptional comprehensive properties, has been widely adopted as the primary material for liquid cargo tank containment systems and pipelines in liquefied natural gas (LNG) carriers. However, challenges such as hot crackin...

(This article belongs to the Special Issue Advanced Metal Welding and Joining Technologies—2nd Edition)
  • Article
  • Open Access
3 Citations
1,930 Views
14 Pages

29 July 2024

This paper refines an optimized array lateral logging tool designed for small boreholes, leveraging existing technologies. The tool features four investigation depth curves, and resistivity response curves are derived through finite element model sim...

  • Article
  • Open Access
1 Citations
1,397 Views
21 Pages

20 November 2025

Accurate depth estimation is fundamental for underwater applications such as robotics and marine exploration. However, underwater imaging suffers from severe degradation due to light attenuation, scattering, and geometric distortion, which is compoun...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
841 Views
18 Pages

Kinetic Simulation of Gas-Particle Injection into the Molten Lead

  • Victor Hugo Gutiérrez Pérez,
  • Seydy Lizbeth Olvera Vázquez,
  • Alejandro Cruz Ramírez,
  • Ricardo Gerardo Sánchez Alvarado and ,
  • Jorge Enrique Rivera Salinas,
  • Mario Cesar Ordoñez Gutiérrez and
  • Mercedes Paulina Chávez Diaz
  • + 2 authors+ 0 author

3 December 2025

Powder addition onto a molten-lead surface followed by stirring is widely used for desilvering during lead bullion refining operations. We model submerged zinc particle injection by coupling (i) a transient particle–metal reaction following Ohg...

(This article belongs to the Special Issue Metal Extraction and Smelting Technology)
  • Article
  • Open Access
4 Citations
3,814 Views
20 Pages

4 July 2024

Acquiring underwater depth maps is essential as they provide indispensable three-dimensional spatial information for visualizing the underwater environment. These depth maps serve various purposes, including underwater navigation, environmental monit...

(This article belongs to the Special Issue Underwater Vision Sensing System)
  • Article
  • Open Access
100 Views
31 Pages

1 November 2026

Ocean conditions influence the throughput and product composition of methane hydrate airlift recovery. A stationary gas–liquid–solid model couples hydrate dissociation, particle shrinkage, liquid cooling, and separate air and methane bala...

  • Article
  • Open Access
348 Views
23 Pages

DIDAF-Depth: Dual-Path Interaction and Dual-Attention Fusion Network for Self-Supervised Nighttime Monocular Depth Estimation

  • Qing Chen,
  • Chao Wei,
  • Bingmeng Zhu,
  • Qiang Yan and ,
  • Shengbing Chen and
  • Dongmei Zhou
  • + 1 author+ 0 author

Self-supervised monocular depth estimation is challenging at night because adverse illumination degrades the visual cues required for correspondence estimation and depth inference. Although appearance compensation and domain transfer can mitigate nig...

(This article belongs to the Section AI in Imaging)
  • Article
  • Open Access
147 Views
30 Pages

16 October 2026

Reliability estimates from dynamic pavement models can depend on numerical settings that appear adequate at nominal inputs. This study evaluates how Fourier truncation, cross-sectional mesh, time step, and interface recovery propagate into FORM estim...

  • Article
  • Open Access
817 Views
19 Pages

10 February 2026

A galvanometer-based laser 3D projection system requires accurate mapping between galvanometer control signals and workpiece coordinates to ensure reliable on-part marking. This study presents a calibration and verification pipeline that uses a color...

(This article belongs to the Section Optics and Lasers)
  • Article
  • Open Access
13 Citations
5,652 Views
15 Pages

Physical Simulation of Molten Steel Homogenization and Slag Entrapment in Argon Blown Ladle

  • Fu Yang,
  • Yan Jin,
  • Chengyi Zhu,
  • Xiaosen Dong and ,
  • Peng Lin,
  • Changgui Cheng,
  • Yang Li,
  • Lin Sun,
  • Jianhui Pan and
  • Qiang Cai
  • + 5 authors+ 0 author

24 July 2019

Argon stirring is one of the most widely used metallurgical methods in the secondary refining process as it is economical and easy, and also an important refining method in clean steel production. Aiming at the issue of poor homogeneity of compositio...

(This article belongs to the Special Issue Process Modeling in Pyrometallurgical Engineering)
  • Article
  • Open Access
23 Citations
5,851 Views
21 Pages

Effect of Laser Shock Peening without Coating on Grain Size and Residual Stress Distribution in a Microalloyed Steel Grade

  • Calvin Samuel,
  • Arivarasu MOGANRAJ,
  • Sathya Swaroop,
  • K. Praveenkumar and ,
  • Arivazhagan Natarajan,
  • Muktinutalapati Nageshwara Rao,
  • Badirujjaman Syed and
  • Basudev Bhattacharya
  • + 3 authors+ 0 author

24 January 2023

This study aimed to identify the optimal combination of wavelength and laser pulse density to achieve the optimal pulse pressure that can induce the maximum compressive residual stress at the subsurface of microalloyed steel. For this, laser shock pe...

(This article belongs to the Section Crystalline Metals and Alloys)
  • Article
  • Open Access
8 Citations
3,767 Views
13 Pages

Depth Quality Improvement with a 607 MHz Time-Compressive Computational Pseudo-dToF CMOS Image Sensor

  • Anh Ngoc Pham,
  • Thoriq Ibrahim,
  • Keita Yasutomi,
  • Shoji Kawahito and ,
  • Hajime Nagahara and
  • Keiichiro Kagawa
  • + 1 author+ 0 author

22 November 2023

In this paper, we present a prototype pseudo-direct time-of-flight (ToF) CMOS image sensor, achieving high distance accuracy, precision, and robustness to multipath interference. An indirect ToF (iToF)-based image sensor, which enables high spatial r...

(This article belongs to the Special Issue Special Issue on the 2023 International Image Sensor Workshop (IISW2023))
  • Article
  • Open Access
3 Citations
3,224 Views
16 Pages

2 August 2024

In construction projects, conducting dynamic load tests on all piles proves impractical. Selective testing estimates bearing capacity, while the remaining piles rely on penetration depth for management. This approach, however, faces reliability issue...

(This article belongs to the Section Civil Engineering)
  • Article
  • Open Access
3 Citations
3,060 Views
15 Pages

Phase Error Reduction for a Structured-Light 3D System Based on a Texture-Modulated Reprojection Method

  • Chenbo Shi,
  • Zheng Qin,
  • Xiaowei Hu,
  • Changsheng Zhu and ,
  • Yuanzheng Mo,
  • Zelong Li,
  • Shaojia Yan,
  • Yue Yu,
  • Xiangteng Zang and
  • Chun Zhang
  • + 5 authors+ 0 author

24 March 2024

Fringe projection profilometry (FPP), with benefits such as high precision and a large depth of field, is a popular 3D optical measurement method widely used in precision reconstruction scenarios. However, the pixel brightness at reflective edges doe...

(This article belongs to the Topic 3D Computer Vision and Smart Building and City, 2nd Edition)
  • Article
  • Open Access
6 Citations
2,252 Views
16 Pages

9 December 2024

In order to study the wear failure mechanism and structure evolution law of bearings under different speeds and contact loads, an elastoplastic model of a 7009AC bearing was established in this paper. The stress, temperature rise and grain size durin...

  • Article
  • Open Access
369 Views
21 Pages

25 August 2026

Electric-shovel top sheave bearings with sensor-embedded slots operate under harsh service loads, making them prone to fatigue crack initiation and propagation. Accurate predictions of crack growth within the bearing body are therefore essential for...

(This article belongs to the Section Machine Design and Theory)
  • Article
  • Open Access
1 Citations
301 Views
35 Pages

11 September 2026

Mirror segmentation aims to identify mirror pixels from a single RGB image, yet remains challenging because mirrors provide weak intrinsic texture cues and their appearance is dominated by scene-dependent reflections under varying illumination and vi...

(This article belongs to the Special Issue Advances in Autonomous Driving: Detection and Tracking)
  • Article
  • Open Access
207 Views
27 Pages

29 September 2026

The combined effects of global warming and increasing rainfall threaten the stability of railway embankments in permafrost regions of the Qinghai–Tibet Plateau. An indoor embankment model at a geometric scale of 1:17 was constructed based on a...

  • Article
  • Open Access
5 Citations
1,833 Views
22 Pages

10 February 2025

Burn injuries are a common traumatic condition, and the early diagnosis of burn depth is crucial for reducing treatment costs and improving survival rates. In recent years, image-based deep learning techniques have been utilized to realize the automa...

(This article belongs to the Section Biomedical Sensors)
  • Article
  • Open Access
5 Citations
1,922 Views
25 Pages

Unit Load of Abrasive Grains in the Machining Zone During Microfinishing with Abrasive Films

  • Katarzyna Tandecka,
  • Wojciech Kacalak,
  • Filip Szafraniec and
  • Thomas G. Mathia

23 December 2024

This work investigates the contact between abrasive particles and workpieces in microfinishing processes with special consideration given to the determination of unit force, unit pressure, and grain, the forces exerted by individual abrasive grains....

(This article belongs to the Special Issue Evaluation of the Surface Topography, Abrasive Processing, and Precision Machining Technology and Applications)
  • Article
  • Open Access
1 Citations
1,738 Views
15 Pages

1 October 2025

Quantifying deep soil (10–100 cm) and non-growing-season soil respiration (SR) is crucial for refining carbon (C) cycle models, yet the regulatory mechanisms governing these processes remain unclear. The novelty of this study lies in its focus...

(This article belongs to the Section Plant–Soil Interactions)
  • Article
  • Open Access
693 Views
29 Pages

18 December 2025

Ultra-shallow prefabricated underpass tunnel technology has been widely adopted in urban transportation construction owing to its advantages of rapid construction and minimal environmental impact. However, the deformation behavior of tunnel joints un...

(This article belongs to the Special Issue Advances in Tunnel Excavation and Underground Construction)
  • Article
  • Open Access
3 Citations
1,081 Views
24 Pages

Depth-Aware Adversarial Domain Adaptation for Cross-Domain Remote Sensing Segmentation

  • Lulu Niu,
  • Xiaoxuan Liu,
  • Enze Zhu,
  • Yidan Zhang and ,
  • Hanru Shi,
  • Xiaohe Li,
  • Hong Wang,
  • Jie Jia and
  • Lei Wang
  • + 4 authors+ 0 author

7 April 2026

As a key task in remote sensing analysis, semantic segmentation of remote sensing images (RSI) underpins many practical applications. Despite its importance, obtaining dense pixel-wise annotations remains labor-intensive and time-consuming. Unsupervi...

(This article belongs to the Special Issue Target Detection, Recognition, Tracking, and Positioning Using Remote Sensing and AI Techniques)
  • Article
  • Open Access
1 Citations
1,782 Views
18 Pages

A Two-Stage Method for Aerial Tracking in Adverse Weather Conditions

  • Yuan Feng,
  • Xinnan Xu,
  • Nuoyi Chen,
  • Quanjian Song and
  • Lufang Zhang

18 April 2024

To tackle the issue of aerial tracking failure in adverse weather conditions, we developed an innovative two-stage tracking method, which incorporates a lightweight image restoring model DADNet and an excellent pretrained tracker. Our method begins b...

(This article belongs to the Special Issue Applications of Artificial Intelligence, Machine Learning and Data Science)
  • Article
  • Open Access
4 Citations
2,640 Views
18 Pages

A Non-Contact Method for Detecting and Evaluating the Non-Motor Use of Sidewalks Based on Three-Dimensional Pavement Morphology Analysis

  • Shengchuan Jiang,
  • Hui Wang,
  • Wenruo Fan,
  • Min Chi and ,
  • Xun Zhang and
  • Jinlong Ma
  • + 1 author+ 0 author

10 March 2025

This study proposes a non-contact framework for evaluating the skid resistance of shared roadside pavements to improve cyclist and pedestrian safety. By integrating a friction tester and a laser scanner, we synchronize high-resolution three-dimension...

(This article belongs to the Section Environmental Sensing)
  • Article
  • Open Access
14 Citations
4,767 Views
15 Pages

13 December 2019

An evaluation of scour estimation methods has indicated that the effects of blockage ratio are neglected in both scour modelling and development of new predictive methods. The role of channel blockage on the mechanism and progression of local scour i...

(This article belongs to the Special Issue Experimental, Numerical and Field Approaches to Scour Research)
  • Article
  • Open Access
22 Citations
2,662 Views
18 Pages

Improving the Surface Integrity of 316L Steel in the Context of Bioimplant Applications

  • Krzysztof Szwajka,
  • Joanna Zielińska-Szwajka and
  • Tomasz Trzepieciński

28 April 2023

Bioimplants should meet important surface integrity criteria, with the main goal of the manufacturing process to improve wear and corrosion resistance properties. This requires a special approach at the cutting stage. During this research, the impact...

(This article belongs to the Special Issue Forming Technologies and Mechanical Properties of Advanced Materials - 2nd Volume)
  • Article
  • Open Access
429 Views
31 Pages

GeoTrack-GS: Track-Guided Geometry Refinement for Sparse-View 3D Gaussian Splatting

  • Zhipeng Ye,
  • Zihao Lu,
  • Yuan Zhang,
  • Wenjie Qin and ,
  • Jiayi Hong,
  • Yan Cao,
  • Xuming Wu and
  • Zhibin Shao
  • + 3 authors+ 0 author

28 August 2026

Three-dimensional Gaussian Splatting (3DGS) can degrade severely in sparse-view settings because the optimization is under-constrained. Monocular depth priors provide dense supervision, but their inconsistency across views can distort geometry. We pr...

(This article belongs to the Section Computer Science & Engineering)
  • Article
  • Open Access
502 Views
25 Pages

Mechanism of Sediment Erosion and Transport by Landslide-Induced Surges: Insights from Laboratory Experiments and CFD-DEM Numerical Simulation

  • Cheng Liu,
  • Peifeng Han,
  • Xiuling Zhong,
  • Tao Li and ,
  • Hao Huang,
  • Song Gu,
  • Haitao Xu and
  • Shasha Yi
  • + 3 authors+ 0 author

18 August 2026

Landslide-induced surges and subsequent dam breaching constitute severe cascading hazards in mountainous gorges. Conventional steady-flow sediment theories fail to describe these extreme, unsteady processes, and existing research focuses on wave prop...

(This article belongs to the Section Water Erosion and Sediment Transport)
  • Article
  • Open Access
353 Views
20 Pages

11 September 2026

Quantitative motion analysis is important for understanding the characteristics of climbing movement and for providing objective feedback in sport climbing. Although optical motion capture systems can measure three-dimensional body motion with high a...

(This article belongs to the Special Issue Data-Driven Insights: Intelligent Sensors and Technology in Sports Science)
  • Article
  • Open Access
13 Citations
1,862 Views
25 Pages

29 October 2025

This paper analyzes the behavior of a three-phase induction motor (IM) during voltage sags in the supply network and its subsequent re-acceleration following voltage recovery. A dynamic mathematical model based on the two-axis (d,q) representation of...

  • Article
  • Open Access
334 Views
25 Pages

A Polarization-Adaptive and Multi-Wavelength-Weighted Method for Streak Image Reconstruction

  • Yu Zhai,
  • Sen Xie,
  • Wenhao Li,
  • Xuan Li and ,
  • Xiuli Luo,
  • Shangwei Guo and
  • Liming Wang
  • + 2 authors+ 0 author

11 September 2026

To improve depth reconstruction accuracy of streak tube imaging LiDAR (STIL) under weak echo and low-contrast conditions in complex scattering environments, this paper proposes a hierarchical reliability-guided multispectral polarization reconstructi...

  • Article
  • Open Access
3,572 Views
20 Pages

Simulation and Process Optimization of Online Cooling for S460 Thick Plates

  • Guangyuan Wang,
  • Zhen Wang,
  • Feng Chai,
  • Zhongwen Wu and ,
  • Xiaobing Luo and
  • Tao Pan
  • + 1 author+ 0 author

3 June 2025

Marine engineering thick plates are essential structural materials for large vessels and offshore platforms, and optimizing their manufacturing processes is critical for advancing marine equipment. This study examined the microstructural and property...

(This article belongs to the Section Materials Simulation and Design)
  • Article
  • Open Access
1 Citations
728 Views
22 Pages

18 May 2026

Accurate contour extraction of aggregate particles from conveyor-belt depth maps is essential for downstream particle counting and size measurement, yet industrial depth data often contains weak discontinuities, missing values, and speckle-like noise...

(This article belongs to the Section Sensing and Imaging)
  • Article
  • Open Access
1,235 Views
21 Pages

Unsupervised Domain Adaptation with Multimodal Fusion for Monocular 3D Object Detection

  • Jin Jiang,
  • Jidong Dai,
  • Wei Li,
  • Yuquan Zhou and ,
  • Maozhang Ye,
  • Jianhuan Zhang and
  • Chentao Zhang
  • + 2 authors+ 0 author

This paper presents UM3D, an end-to-end unsupervised domain adaptation framework for monocular 3D object detection. Monocular 3D object detection is appealing due to its low cost, yet it suffers from limited depth cues and poor cross-domain generaliz...

(This article belongs to the Section Intelligent and Connected Mobility)
  • Article
  • Open Access
41 Citations
5,946 Views
31 Pages

7 October 2020

Snow cover is a key parameter of the climate system and its significant seasonal and annual variability have significant impacts on the surface energy balance and global water circulation. However, current snow depth datasets show large inconsistenci...

(This article belongs to the Special Issue Fusion of High-Level Remote Sensing Products)
  • Article
  • Open Access
5 Citations
1,613 Views
20 Pages

Experimental and Numerical Analysis of Evaporation Processes in a Semi-Arid Region

  • Xuanming Zhang,
  • Zaiyong Zhang,
  • Wenke Wang and
  • Zhoufeng Wang

8 April 2025

This study combines field experiments and numerical analysis using the HYDRUS model to investigate the impact of water table depths on evaporation processes in semi-arid regions with shallow groundwater. Two lysimeters with different water table dept...

  • Article
  • Open Access
482 Views
15 Pages

Pickalo: Leveraging 6D Pose Estimation and Deep Stereo Matching for Industrial Bin Picking

  • Alessandro Tarsi,
  • Matteo Mastrogiuseppe,
  • Saverio Taliani,
  • Simone Cortinovis and
  • Ugo Pattacini

12 October 2026

Bin picking in industrial environments remains challenging due to the high cost of industrial 3D sensors and the typical requirement of structured-light projectors. We present Pickalo, a modular pipeline designed to reduce the setup complexity of ind...

(This article belongs to the Section Industrial Robots and Automation)
  • Article
  • Open Access
24 Citations
11,583 Views
21 Pages

This study explores the generation of natural hydrogen through the serpentinization of onshore ultramafic rocks, highlighting its potential as a clean energy resource. By investigating critical factors such as mineral composition, temperature, and pr...

(This article belongs to the Section Geochemistry)

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