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34 Results Found

  • Article
  • Open Access
4 Citations
3,512 Views
19 Pages

Restoration and Enhancement of Historical Stereo Photos

  • Marco Fanfani,
  • Carlo Colombo and
  • Fabio Bellavia

Restoration of digital visual media acquired from repositories of historical photographic and cinematographic material is of key importance for the preservation, study and transmission of the legacy of past cultures to the coming generations. In this...

  • Article
  • Open Access
4 Citations
3,548 Views
12 Pages

The Effect of Stacking on the Accuracy of 3D-Printed Full-Arch Dental Models

  • Olan Hartley,
  • Tanvi Shanbhag,
  • Derek Smith,
  • Antonio Grimm,
  • Ziad Salameh,
  • Santosh K. Tadakamadla,
  • Frank Alifui-Segbaya and
  • Khaled E. Ahmed

13 December 2022

The objective of this study was to assess the effect of stacking on the dimensional and full-arch accuracy of 3D-printed models, utilising a standardised assessment methodology. A previously validated methodology involving a standard tessellation lan...

  • Article
  • Open Access
43 Citations
6,903 Views
16 Pages

2 October 2020

Recently, wireless sensor networks (WSNs) have been extensively deployed to monitor environments. Sensor nodes are susceptible to fault generation due to hardware and software failures in harsh environments. Anomaly detection for the time-series stre...

  • Article
  • Open Access
16 Citations
3,511 Views
16 Pages

Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack

  • Bruna G. Palm,
  • Dimas I. Alves,
  • Mats I. Pettersson,
  • Viet T. Vu,
  • Renato Machado,
  • Renato J. Cintra,
  • Fábio M. Bayer,
  • Patrik Dammert and
  • Hans Hellsten

3 April 2020

This paper presents five different statistical methods for ground scene prediction (GSP) in wavelength-resolution synthetic aperture radar (SAR) images. The GSP image can be used as a reference image in a change detection algorithm yielding a high pr...

  • Feature Paper
  • Article
  • Open Access
761 Views
17 Pages

20 July 2025

To improve the prediction accuracy of soot load in gasoline particulate filters (GPFs) and the control accuracy during GPF regeneration, this study developed a prediction model to predict the soot mass concentration at the GPF inlet of gasoline direc...

  • Article
  • Open Access
9 Citations
4,023 Views
21 Pages

Vision transformers represent the cutting-edge topic in computer vision and are usually employed on two-dimensional data following a transfer learning approach. In this work, we propose a trained-from-scratch stacking ensemble of 3D-vision transforme...

  • Article
  • Open Access
5 Citations
1,988 Views
27 Pages

Synthesizing Local Capacities, Multi-Source Remote Sensing and Meta-Learning to Optimize Forest Carbon Assessment in Data-Poor Regions

  • Kamaldeen Mohammed,
  • Daniel Kpienbaareh,
  • Jinfei Wang,
  • David Goldblum,
  • Isaac Luginaah,
  • Esther Lupafya and
  • Laifolo Dakishoni

15 January 2025

As the climate emergency escalates, the role of forests in carbon sequestration is paramount. This paper proposes a framework that integrates local capacities, multi-source remote sensing data, and meta-learning to enhance forest carbon assessment me...

  • Article
  • Open Access
1 Citations
1,851 Views
12 Pages

SCC-GPT: Source Code Classification Based on Generative Pre-Trained Transformers

  • Mohammad D. Alahmadi,
  • Moayad Alshangiti and
  • Jumana Alsubhi

7 July 2024

Developers often rely on online resources, such as Stack Overflow (SO), to seek assistance for programming tasks. To facilitate effective search and resource discovery, manual tagging of questions and posts with the appropriate programming language i...

  • Article
  • Open Access
9 Citations
3,292 Views
19 Pages

29 June 2021

Due to the high temporal repetition rates, median/low spatial resolution remote sensing images are the main data source of change detection (CD). It is worth noting that they contain a large number of mixed pixels, which makes adequately capturing th...

  • Article
  • Open Access
10 Citations
4,713 Views
19 Pages

29 March 2021

Accurate irrigated area maps remain difficult to generate, as smallholder irrigation schemes often escape detection. Efforts to map smallholder irrigation have often relied on complex classification models fitted to temporal image stacks. The use of...

  • Article
  • Open Access
5 Citations
3,995 Views
14 Pages

27 January 2025

To expand the applications of proton exchange membrane fuel cell (PEMFC) stacks, it is essential to address the issue of their short lifetime. Various studies are being conducted to improve this limitation, and efficient methods for verifying durabil...

  • Article
  • Open Access
19 Citations
6,940 Views
19 Pages

13 April 2020

The emerging use of photogrammetric point clouds in three-dimensional (3D) monitoring processes has revealed some constraints with respect to the use of LiDAR point clouds. Oftentimes, point clouds (PC) obtained by time-lapse photogrammetry have lowe...

  • Article
  • Open Access
240 Views
25 Pages

Environmental, social and governance (ESG) metrics increasingly inform sustainable investment yet suffer from inter-rater heterogeneity and incomplete reporting, limiting their utility for forward-looking allocation. In this study, we developed and v...

  • Article
  • Open Access
10 Citations
3,196 Views
19 Pages

Ensemble Learning for Blending Gridded Satellite and Gauge-Measured Precipitation Data

  • Georgia Papacharalampous,
  • Hristos Tyralis,
  • Nikolaos Doulamis and
  • Anastasios Doulamis

11 October 2023

Regression algorithms are regularly used for improving the accuracy of satellite precipitation products. In this context, satellite precipitation and topography data are the predictor variables, and gauged-measured precipitation data are the dependen...

  • Article
  • Open Access
11 Citations
3,360 Views
22 Pages

Detection of Invasive Black Locust (Robinia pseudoacacia) in Small Woody Features Using Spatiotemporal Compositing of Sentinel-2 Data

  • Tomáš Rusňák,
  • Andrej Halabuk,
  • Ľuboš Halada,
  • Hubert Hilbert and
  • Katarína Gerhátová

16 February 2022

Recognition of invasive species and their distribution is key for managing and protecting native species within both natural and man-made ecosystems. Small woody features (SWF) represent fragmented patches or narrow linear tree features that are of h...

  • Article
  • Open Access
2 Citations
1,441 Views
10 Pages

12 September 2024

Digital holography has transformative potential for the measurement of stacked-chip microstructures due to its non-invasive, single-shot, full-field characteristics. However, significant light scattering and diffraction at steep edges in step microst...

  • Article
  • Open Access
8 Citations
4,535 Views
20 Pages

2 October 2018

The noise characteristics of the Global Navigation Satellite System (GNSS) position time series can be biased by many factors, which in turn affect the estimates of parameters in the deterministic model using a least squares method. The authors asses...

  • Article
  • Open Access
19 Citations
4,063 Views
13 Pages

Compressed Sensing Real-Time Cine Reduces CMR Arrhythmia-Related Artifacts

  • Benjamin Longère,
  • Paul-Edouard Allard,
  • Christos V Gkizas,
  • Augustin Coisne,
  • Justin Hennicaux,
  • Arianna Simeone,
  • Michaela Schmidt,
  • Christoph Forman,
  • Solenn Toupin and
  • François Pontana
  • + 1 author

24 July 2021

Background and objective: Cardiac magnetic resonance (CMR) is a key tool for cardiac work-up. However, arrhythmia can be responsible for arrhythmia-related artifacts (ARA) and increased scan time using segmented sequences. The aim of this study is to...

  • Article
  • Open Access
1 Citations
2,404 Views
18 Pages

Fabrication of Particle-Stacking Microporous Metal Using Laser Powder Bed Fusion

  • Jinyong Qiu,
  • Xiaoqiang Xu,
  • Xu Chen,
  • Yaxiong Liu and
  • Yanlong Wu

14 March 2024

Laser powder bed fusion can fabricate porous structures through lattices, but the preparation of micropores (<50 μm) with a specific pore distribution remains a challenge. Microporous 316L was fabricated by controlling the melting and solidific...

  • Article
  • Open Access
1 Citations
1,281 Views
21 Pages

Speckle Noise Reduction in Digital Holography by 3D Adaptive Filtering

  • Andrey A. Kerov,
  • Alexander V. Kozlov,
  • Pavel A. Cheremkhin,
  • Anna V. Shifrina,
  • Rostislav S. Starikov,
  • Evgenii Y. Zlokazov,
  • Elizaveta K. Petrova,
  • Vsevolod A. Nebavskiy and
  • Nikolay N. Evtikhiev

1 September 2025

Digital holography enables the reconstruction of both 2D and 3D object information from interference patterns captured by digital cameras. A major challenge in this field is speckle noise, which significantly degrades the quality of the reconstructed...

  • Article
  • Open Access
716 Views
28 Pages

A Novel Application of Choquet Integral for Multi-Model Fusion in Urban PM10 Forecasting

  • Houria Bouzghiba,
  • Amine Ajdour,
  • Najiya Omar,
  • Abderrahmane Mendyl and
  • Gábor Géczi

10 November 2025

Air pollution forecasting remains a critical challenge for urban public health management, with traditional approaches struggling to balance accuracy and interpretability. This study introduces a novel PM10 forecasting framework combining physics-inf...

  • Article
  • Open Access
10 Citations
3,461 Views
14 Pages

18 October 2023

The paper proposes an approach for estimating the rectal temperature of dairy cows based on the non-invasive real-time monitoring of their respiration rates and the temperature-humidity index (THI) of the environment, combined with the analysis of in...

  • Article
  • Open Access
33 Citations
4,479 Views
25 Pages

28 December 2022

Earth Observation services guarantee continuous land cover mapping and are becoming of great interest worldwide. The Google Earth Engine Dynamic World represents a planetary example. This work aims to develop a land cover mapping service in geomorpho...

  • Article
  • Open Access
1 Citations
1,669 Views
19 Pages

Advancing Structural Health Monitoring with Deep Belief Network-Based Classification

  • Álvaro Presno Vélez,
  • Zulima Fernández Muñiz and
  • Juan Luis Fernández Martínez

27 April 2025

Structural health monitoring (SHM) plays a critical role in ensuring the safety and longevity of civil infrastructure by enabling the early detection of structural changes and supporting preventive maintenance strategies. In recent years, deep learni...

  • Article
  • Open Access
5 Citations
4,638 Views
16 Pages

Accurate Day-Ahead Energy Price (DAEP) forecasting is essential for optimizing energy market operations. This study introduces a machine learning framework to predict the DAEP with a 24 h lead time, leveraging historical data and forecasts available...

  • Article
  • Open Access
36 Citations
4,285 Views
13 Pages

Glacial lakes are an important component of the cryosphere in the Tibetan Plateau. In response to climate warming, they threaten the downstream lives, ecological environment, and public infrastructures through outburst floods within a short time. Alt...

  • Article
  • Open Access
7 Citations
2,759 Views
20 Pages

17 December 2023

Evaluating the long-term urban forest ecological environmental quality (EEQ) and analyzing the drivers of its spatiotemporal changes can provide a scientific basis for making long-term urban forest planning decisions. Taking into account the characte...

  • Article
  • Open Access
1,085 Views
24 Pages

16 September 2025

Mapping forest tree species is vital for the habitat assessment, ecosystem services estimation, and implementation of European environmental policies such as the Habitats Directive. This study explores how repeated satellite observations over time, k...

  • Article
  • Open Access
425 Views
28 Pages

12 December 2025

This study presents the first systematic investigation into the influence of spectral enhancement techniques on the segmentation accuracy of specific soil and vegetation marks associated with palaeochannels. These marks are often subtle and can be se...

  • Article
  • Open Access
2 Citations
6,272 Views
24 Pages

Ambulatory 24–72 h Holter ECG monitoring is recommended for patients with suspected arrhythmias, which are often transitory and might remain unseen in resting standard 12-lead ECG. Holter manufacturers provide software diagnostic tools to assis...

  • Article
  • Open Access
4 Citations
3,535 Views
42 Pages

1 September 2022

The “natural GMS laboratory” (granulometry-morphometry-situmetry) is located within the Variscan Basement in SE Germany (Fichtelgebirge Mts.), which is uplifted relative to its Permo-Mesozoic foreland along a deep-seated lineamentary faul...

  • Article
  • Open Access
7 Citations
2,433 Views
17 Pages

14 November 2023

In various engineering applications, remote sensing images such as digital elevation models (DEMs) and orthomosaics provide a convenient means of generating 3D representations of physical assets, enabling the discovery of new insights and analyses. H...

  • Article
  • Open Access
4 Citations
5,284 Views
23 Pages

24 August 2018

Machine learning-based remote-sensing techniques have been widely used for the production of specific land cover maps at a fine scale. P-learning is a collection of machine learning techniques for training the class descriptors on the positive sample...

  • Article
  • Open Access
880 Views
18 Pages

Harvest Date Monitoring in Cereal Fields at Large Scale Using Dense Stacks of Sentinel-2 Imagery Validated by Real Time Kinematic Positioning Data

  • Fernando Sedano,
  • Daniele Borio,
  • Martin Claverie,
  • Guido Lemoine,
  • Philippe Loudjani,
  • David Alfonso Nafría,
  • Vanessa Paredes-Gómez,
  • Francisco Javier Rojo-Revilla,
  • Ferdinando Urbano and
  • Marijn Van der Velde

20 September 2025

This study presents an operational and robust method for detecting and dating cereal harvest events using temporal stacks of Copernicus Sentinel-2 imagery and crop and fields border information from ancillary records. The proposed approach is exempt...