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62 Results Found

  • Article
  • Open Access
7 Citations
2,392 Views
11 Pages

In-Process Measurement of Three-Dimensional Deformations Based on Speckle Photography

  • Andreas Tausendfreund,
  • Dirk Stöbener and
  • Andreas Fischer

28 May 2021

In the concept of the process signature, the relationship between a material load and the modification remaining in the workpiece is used to better understand and optimize manufacturing processes. The basic prerequisite for this is to be able to meas...

  • Article
  • Open Access
6 Citations
2,750 Views
12 Pages

Direct Anthropometry Overestimates Cranial Asymmetry—3D Digital Photography Proves to Be a Reliable Alternative

  • Felix Nieberle,
  • Steffen Spoerl,
  • Lisa-Marie Lottner,
  • Gerrit Spanier,
  • Johannes G. Schuderer,
  • Mathias Fiedler,
  • Michael Maurer,
  • Nils Ludwig,
  • Johannes K. Meier and
  • Tobias Ettl
  • + 2 authors

This study compared manual and digital measurements of plagiocephaly and brachycephaly in infants and evaluated whether three-dimensional (3D) digital photography measurements can be used as a superior alternative in everyday clinical practice. A tot...

  • Article
  • Open Access
3 Citations
2,271 Views
16 Pages

A Three-Dimensional Triangle Mesh Integration Method for Oblique Photography Model Data

  • Defu Che,
  • Min Su,
  • Baodong Ma,
  • Feng Chen,
  • Yining Liu,
  • Duo Wang and
  • Yanen Sun

6 September 2023

Oblique photography 3D models are increasingly used in 3D modeling and visualization, urban planning and design, smart cities, smart mines, and other fields. To ensure that 3D models can be replaced and updated, it is necessary to deal with the model...

  • Article
  • Open Access
14 Citations
3,433 Views
18 Pages

Unmanned Aerial Vehicle (UAV) oblique photography technology has been applied more and more widely for the 3D reconstruction of real-scene models due to its high efficiency and low cost. However, there are many kinds of UAVs with different positionin...

  • Article
  • Open Access
452 Views
23 Pages

7 November 2025

This study presents a combined experimental and numerical investigation into the evolution of projectile attitude during oblique penetration into thin concrete targets at non-zero angles of attack. An oblique penetration test system was developed bas...

  • Article
  • Open Access
14 Citations
4,205 Views
19 Pages

UAS IR-Thermograms Processing and Photogrammetry of Thermal Images for the Inspection of Building Envelopes

  • Mariluz Gil-Docampo,
  • Juan Ortiz Sanz,
  • Ignacio Cañas Guerrero and
  • Manés Fernández Cabanas

20 March 2023

Infrared thermography techniques (IRT) are increasingly being applied in non-invasive structural defect detection and building inspection, as they provide accurate surface temperature (ST) and ST contrast (Delta-T) information. The common optional or...

  • Article
  • Open Access
10 Citations
2,159 Views
13 Pages

UAV 3D Modeling and Application Based on Railroad Bridge Inspection

  • Zhiyuan Tang,
  • Yipu Peng,
  • Jian Li and
  • Zichao Li

21 December 2023

Unmanned aerial vehicle (UAV) remote sensing technology is vigorously driving the development of digital cities. For experimental objects such as large, protruding, and structurally complex steel truss railway bridge structures, commonly used oblique...

  • Communication
  • Open Access
20 Citations
8,887 Views
11 Pages

The Introduction of a New Diagnostic Tool in Forensic Pathology: LiDAR Sensor for 3D Autopsy Documentation

  • Aniello Maiese,
  • Alice Chiara Manetti,
  • Costantino Ciallella and
  • Vittorio Fineschi

19 February 2022

Autopsy is a complex and unrepeatable procedure. It is essential to have the possibility of reviewing the autoptic findings, especially when it is done for medico-legal purposes. Traditional photography is not always adequate to record forensic pract...

  • Article
  • Open Access
4 Citations
1,766 Views
18 Pages

A Smart Floodlighting Design System Based on Raster Images

  • Rafał Krupiński,
  • Wolfgang Scherzer,
  • Piotr Pracki,
  • Andrzej Wiśniewski and
  • Krzysztof Skarżyński

11 May 2023

This article describes a system for designing floodlighting of objects using computer graphics. Contrary to the currently used visualisation tools, the developed computer application is based on the daytime photography of the object and not on its th...

  • Article
  • Open Access
36 Citations
7,880 Views
20 Pages

19 June 2013

Terrestrial laser scanners (TLS) have the potential to revolutionise measurement of the three-dimensional structure of vegetation canopies for applications in ecology, hydrology and climate change. This potential has been the subject of recent resear...

  • Article
  • Open Access
5 Citations
1,462 Views
8 Pages

The main purpose of this article is to investigate the dynamic behavior and optical soliton for the M-truncated fractional paraxial wave equation arising in a liquid crystal model, which is usually used to design camera lenses for high-quality photog...

  • Article
  • Open Access
4 Citations
2,240 Views
19 Pages

Evaluation of Urban Microscopic Nighttime Light Environment Based on the Coupling Observation of Remote Sensing and UAV Observation

  • Baogang Zhang,
  • Ming Liu,
  • Ruicong Li,
  • Jie Liu,
  • Lie Feng,
  • Han Zhang,
  • Weili Jiao and
  • Liang Lang

4 September 2024

The urban canopy refers to the spatial area at the average height range of urban structures. The light environment of the urban canopy not only influences the ecological conditions of the canopy layer region but also serves as an indicator of the upw...

  • Article
  • Open Access
2,765 Views
18 Pages

A Quasiconformal-Based Geometric Model for Craniofacial Analysis and Its Application

  • Ming-Hei Wong,
  • Meixi Li,
  • King-Man Tam,
  • Hoi-Man Yuen,
  • Chun-Ting Au,
  • Kate Ching-Ching Chan,
  • Albert Martin Li and
  • Lok-Ming Lui

18 April 2023

We address the problem of craniofacial morphometric analysis using geometric models, which has important clinical applications for the diagnosis of syndromes associated with craniofacial dysmorphologies. In this work, a novel geometric model is propo...

  • Article
  • Open Access
16 Citations
5,068 Views
10 Pages

The Use of Gigapixel Photogrammetry for the Understanding of Landslide Processes in Alpine Terrain

  • Saverio Romeo,
  • Lucio Di Matteo,
  • Daniel Scott Kieffer,
  • Grazia Tosi,
  • Aurelio Stoppini and
  • Fabio Radicioni

The work in this paper illustrates an experimental application for geosciences by coupling new and low cost photogrammetric techniques: Gigapixel and Structure-from-Motion (SfM). Gigapixel photography is a digital image composed of billions of pixels...

  • Article
  • Open Access
3 Citations
5,431 Views
14 Pages

Quantitative Analysis of the Head Tilt Using Three-Dimensional Temporal Scan in Children with Torticollis

  • Rayu Yun,
  • Hayoung Jung,
  • Xin Cui,
  • Sungchul Huh,
  • Wonsup Lee,
  • Heecheon You and
  • Sooyeon Kim

27 January 2023

The head tilt of patients with torticollis is usually evaluated subjectively in clinical practice and measuring it in young children is very limited due to poor cooperation. No study has yet evaluated the head tilt using a three-dimensional (3D) scan...

  • Article
  • Open Access
4 Citations
3,042 Views
17 Pages

Small and Micro-Water Quality Monitoring Based on the Integration of a Full-Space Real 3D Model and IoT

  • Yuanrong He,
  • Yujie Yang,
  • Tingting He,
  • Yangfeng Lai,
  • Yudong He and
  • Bingning Chen

5 February 2024

In order to address the challenges of small and micro-water pollution in parks and the low level of 3D visualization of water quality monitoring systems, this research paper proposes a novel wireless remote water quality monitoring system that combin...

  • Article
  • Open Access
1,280 Views
19 Pages

21 January 2025

The combination of global climate change and the urban heat island effect has given rise to a deterioration in the livability of residential districts within cities, posing challenges to enhancing the health quality of urban environments. Meanwhile,...

  • Article
  • Open Access
1,548 Views
17 Pages

21 August 2024

This study focuses on the problem of reconstruction and immersive visualization of cultural heritage objects such as medieval strongholds. Geomatics-specific methods were applied, based on the use of reference data such as maps, topographic databases...

  • Communication
  • Open Access
3 Citations
2,663 Views
7 Pages

7 December 2022

In 1920, Louis Lumière, one of the fathers of Cinématograph, invented photostereosynthesis, a photography technique that could recreate three-dimensional images without a specific artifice. This method involved stacking six to eight pho...

  • Article
  • Open Access
1,901 Views
14 Pages

The results of traditional vegetation-measuring methods are mostly two-dimensional data, which can only convey limited information. The greening situation of many cities or regions in the world cannot be fully assessed by these results. In this regar...

  • Article
  • Open Access
7 Citations
9,163 Views
16 Pages

Shock Wave Diffraction Phenomena around Slotted Splitters

  • Francesca Gnani,
  • Kin Hing Lo,
  • Hossein Zare-Behtash and
  • Konstantinos Kontis

5 January 2015

In the field of aerospace engineering, the study of the characteristics of vortical flows and their unsteady phenomena finds numerous engineering applications related to improvements in the design of tip devices, enhancement of combustor performance,...

  • Technical Note
  • Open Access
16 Citations
3,153 Views
15 Pages

29 June 2022

When combined with high-speed photography technology, the digital image correlation (DIC) method provides an excellent photographic image processing capability that can be used to convert the evolving full-field surface properties of structures to se...

  • Article
  • Open Access
24 Citations
8,928 Views
21 Pages

Dynamic visual simulation of flood risk is crucial for scientific and intelligent emergency management of flood disasters, in which data quality, availability, visualization, and interoperability are important. Here, a seamless integration of a spati...

  • Article
  • Open Access
4 Citations
3,993 Views
16 Pages

19 May 2020

This study created digital terrain models (DTMs) from historical aerial images using Structure from Motion (SfM) for a variety of image dates, resolutions, and photo scales. Accuracy assessments were performed on the SfM DTMs, and they were compared...

  • Article
  • Open Access
2 Citations
4,162 Views
13 Pages

Flexible Plenoptic X-ray Microscopy

  • Elena Longo,
  • Domenico Alj,
  • Joost Batenburg,
  • Ombeline de La Rochefoucauld,
  • Charlotte Herzog,
  • Imke Greving,
  • Ying Li,
  • Mikhail Lyubomirskiy,
  • Ken Vidar Falch and
  • Patricia Estrela
  • + 4 authors

8 February 2022

X-ray computed tomography (CT) is an invaluable technique for generating three-dimensional (3D) images of inert or living specimens. X-ray CT is used in many scientific, industrial, and societal fields. Compared to conventional 2D X-ray imaging, CT r...

  • Article
  • Open Access
6 Citations
2,623 Views
23 Pages

14 March 2024

The present study proposes a preliminary analysis method for rock mass joint acquisition, analysis, and slope stability assessment based on unmanned aerial vehicle (UAV) photogrammetry to extract the joint surface attitude in Geographic Information S...

  • Article
  • Open Access
2,338 Views
13 Pages

27 June 2024

The integration of three-dimensional (3D) cameras into clinical practice for pre-operative planning and post-operative monitoring of rhinoplasties remains controversial. However, this technology offers the advantage of capturing the 3D surface withou...

  • Article
  • Open Access
1,380 Views
18 Pages

Mechanisms of Spatter Formation and Suppression in Aluminum Alloy via Hybrid Fiber–Semiconductor Laser System

  • Jingwen Chen,
  • Di Wu,
  • Xiaoting Li,
  • Fangyi Yang,
  • Peilei Zhang,
  • Haichuan Shi and
  • Zhishui Yu

This study investigates the spatter suppression mechanism in aluminum alloy welding using a hybrid fiber–semiconductor laser system. By integrating high-speed photography and three-dimensional thermal-fluid coupling numerical simulations, the s...

  • Article
  • Open Access
4 Citations
2,021 Views
10 Pages

Comparison of Extended Skin Cancer Screening Using a Three-Step Advanced Imaging Programme vs. Standard-of-Care Examination in a High-Risk Melanoma Patient Cohort

  • Frank Friedrich Gellrich,
  • Nadia Eberl,
  • Julian Steininger,
  • Friedegund Meier,
  • Stefan Beissert and
  • Sarah Hobelsberger

12 June 2024

Modern diagnostic procedures, such as three-dimensional total body photography (3D-TBP), digital dermoscopy (DD), and reflectance confocal microscopy (RCM), can improve melanoma diagnosis, particularly in high-risk patients. This study assessed the b...

  • Article
  • Open Access
24 Citations
5,930 Views
31 Pages

The stability of high rock slopes is largely controlled by the location and orientation of geological features, such as faults, folds, joints, and bedding planes, which can induce structurally controlled slope instability. Under certain conditions, s...

  • Article
  • Open Access
4 Citations
2,731 Views
25 Pages

21 May 2023

A high-precision three-dimensional (3D) model is the premise and vehicle of digitalising hydraulic engineering. Unmanned aerial vehicle (UAV) tilt photography and 3D laser scanning are widely used for 3D model reconstruction. Affected by the complex...

  • Article
  • Open Access
4 Citations
1,550 Views
14 Pages

Digital Orofacial Identification Technologies in Real-World Scenarios

  • Ana Corte-Real,
  • Rita Ribeiro,
  • Pedro Armelim Almiro and
  • Tiago Nunes

5 July 2024

Three-dimensional technology using personal data records has been explored for human identification. The present study aimed to explore two methodologies, photography and orofacial scanning, for assessing orofacial records in forensic scenarios, high...

  • Article
  • Open Access
2 Citations
6,411 Views
24 Pages

10 July 2019

Across many sites in Italy today, wall paintings face particular dangers of damage and destruction. In Pompeii, many extant fragments are open to the air and accessible to tourists. While efforts are underway to preserve the precious few examples tha...

  • Article
  • Open Access
1 Citations
1,159 Views
27 Pages

10 October 2025

This study introduces the Historic Urban Landscape (HUL) approach into a rural setting and conducts a case study of Huaqiu Village. By integrating spatial analysis techniques, unmanned vehicle aerial photography, field surveys, and multitemporal data...

  • Article
  • Open Access
2 Citations
1,919 Views
27 Pages

Monitoring and Evaluation of Ecological Restoration Effectiveness: A Case Study of the Liaohe River Estuary Wetland

  • Yongli Hou,
  • Nanxiang Hu,
  • Chao Teng,
  • Lulin Zheng,
  • Jiabing Zhang and
  • Yifei Gong

27 March 2025

The Liaohe River Estuary Wetland, located in Panjin City, plays a critical role in reducing pollution loads, maintaining biodiversity, and ensuring ecological security in China’s coastal regions, contributing significantly to the implementation...

  • Article
  • Open Access
1,895 Views
25 Pages

Close-Range Photogrammetry and RTI for 2.5D Documentation of Painted Surfaces: A Tiryns Mural Case Study

  • Georgios Tsairis,
  • Athina Georgia Alexopoulou,
  • Nicolaos Zacharias and
  • Ioanna Kakoulli

26 March 2025

Painted surfaces, regardless of their substrate, possess unique elements crucial for their study and interpretation. These elements include geometric characteristics, surface texture, brushwork relief, color layer morphology, and preservation state i...

  • Article
  • Open Access
35 Citations
11,067 Views
34 Pages

More and more digital 3D city models might evolve into spatiotemporal instruments with time as the 4th dimension. For digitizing the current situation, 3D scanning and photography are suitable tools. The spatial future could be integrated using 3D dr...

  • Review
  • Open Access
718 Views
22 Pages

5 December 2025

Melanoma is among the most lethal forms of skin cancer, where early and accurate diagnosis significantly improves patient survival. Traditional diagnostic pathways, including clinical inspection and dermoscopy, are constrained by interobserver variab...

  • Feature Paper
  • Article
  • Open Access
6 Citations
3,961 Views
22 Pages

Mud Volcanism at the Taman Peninsula: Multiscale Analysis of Remote Sensing and Morphometric Data

  • Tatyana N. Skrypitsyna,
  • Igor V. Florinsky,
  • Denis E. Beloborodov and
  • Olga V. Gaydalenok

16 November 2020

Mud volcanism is observed in many tectonically active regions worldwide. One of the typical areas of mud volcanic activity is the Taman Peninsula, Russia. In this article, we examine the possibilities of multiscale analysis of remote sensing and morp...

  • Article
  • Open Access
11 Citations
3,279 Views
18 Pages

25 September 2021

Canopy closure (CC), a useful biophysical parameter for forest structure, is an important indicator of forest resource and biodiversity. Light Detection and Ranging (LiDAR) data has been widely studied recently for forest ecosystems to obtain the thr...

  • Article
  • Open Access
18 Citations
3,705 Views
10 Pages

Accuracy between 2D Photography and Dual-Structured Light 3D Facial Scanner for Facial Anthropometry: A Clinical Study

  • Rocío Cascos,
  • Laura Ortiz del Amo,
  • Francisco Álvarez-Guzmán,
  • José Luis Antonaya-Martín,
  • Alicia Celemín-Viñuela,
  • Diego Gómez-Costa,
  • Mónica Zafra-Vallejo,
  • Rubén Agustín-Panadero and
  • Miguel Gómez-Polo

24 April 2023

(1) Background: Facial scanners are used in different fields of dentistry to digitalize the soft tissues of the patient’s face. The development of technology has allowed the patient to have a 3-dimensional virtual representation, facilitating f...

  • Article
  • Open Access
6 Citations
2,387 Views
30 Pages

10 January 2024

The three-dimensional reconstruction of forest ecological environment by low-altitude remote sensing photography from Unmanned Aerial Vehicles (UAVs) provides a powerful basis for the fine surveying of forest resources and forest management. A stereo...

  • Article
  • Open Access
6 Citations
2,775 Views
14 Pages

9 September 2022

This paper investigates the measurement accuracy of unmanned aerial vehicle-based oblique photography (UAVOP) in bridge deformation identifications. A simply supported concrete beam model was selected and measured using the UAVOP technique. The influ...

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

Influence of Morphological Characteristics of Coarse Aggregates on Skid Resistance of Asphalt Pavement

  • Yuanshuai Dong,
  • Zihao Wang,
  • Wanyan Ren,
  • Tianhao Jiang,
  • Yun Hou and
  • Yanhong Zhang

10 July 2023

This research aims to improve the durability of skid resistance of asphalt pavement from the perspective of coarse aggregates based on on-site investigation. Firstly, the skid resistance of six representative actual roads was tested during two years...

  • Article
  • Open Access
50 Citations
12,707 Views
24 Pages

18 November 2015

Steep topographic reliefs and heavy vegetation severely limit visibility when examining geological structures and surface deformations in the field or when detecting these features with traditional approaches, such as aerial photography and satellite...

  • Article
  • Open Access
17 Citations
6,173 Views
34 Pages

12 February 2019

Periodic health checks of contouring errors under unloaded conditions are critical for machine performance evaluation and value-added manufacturing. Aiming at breaking the dimension, range and speed measurement limitations of the existing devices, a...

  • Review
  • Open Access
30 Citations
11,939 Views
45 Pages

Three-Dimensional Geological Modelling in Earth Science Research: An In-Depth Review and Perspective Analysis

  • Xiaoqin Cao,
  • Ziming Liu,
  • Chenlin Hu,
  • Xiaolong Song,
  • Jonathan Atuquaye Quaye and
  • Ning Lu

29 June 2024

This study examines the development trajectory and current trends of three-dimensional (3D) geological modelling. In recent years, due to the rising global energy demand and the increasing frequency of regional geological disasters, significant progr...

  • Review
  • Open Access
8 Citations
3,835 Views
18 Pages

Pathological Neurovascular Unit Mapping onto Multimodal Imaging in Diabetic Macular Edema

  • Tomoaki Murakami,
  • Kenji Ishihara,
  • Noriko Terada,
  • Keiichi Nishikawa,
  • Kentaro Kawai and
  • Akitaka Tsujikawa

Diabetic retinopathy is a form of diabetic microangiopathy, and vascular hyperpermeability in the macula leads to retinal thickening and concomitant reduction of visual acuity in diabetic macular edema (DME). In this review, we discuss multimodal fun...

  • Article
  • Open Access
2 Citations
1,107 Views
23 Pages

A typical county for traditional village conservation in China is Songyang County. It is renowned for its ancient rammed earth dwellings, which exhibit a unique microclimate and possess significant historical value. However, high precipitation and ac...

  • Article
  • Open Access
22 Citations
5,263 Views
18 Pages

19 October 2021

Three-dimensional printing is becoming increasingly popular because of its extensive applicability. However, printing materials remain limited. To determine the mechanical properties of polylactic acid (PLA) and copper powder-filled polylactic acid (...

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