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Article
Engineering, Geological
Kun Fang et al.
Summary: Physical modelling is an effective method for studying landslides under laboratory conditions. This study evaluates the performance of a multismartphone measurement system for landslide model tests. The system shows high trueness and precision at millimetre and submillimetre levels. It can be used to monitor landslides and accurately measure deformation.
Article
Dentistry, Oral Surgery & Medicine
Giorgio D'Ettorre et al.
Summary: This study compared the performance of a 3D facial scanning system with two different smartphone applications supporting the TrueDepth technology. The results showed that the smartphone applications had longer image acquisition and processing times, and larger surface deviations compared to the reference system. However, these applications demonstrated advantages in terms of cost and portability.
ANGLE ORTHODONTIST
(2022)
Article
Construction & Building Technology
Paulina Stalowska et al.
Summary: This study focused on integrating geometric and radiometric information for crack detection using terrestrial laser scanners. The results obtained enabled the development of a measurement methodology considering both the technical parameters of the scanner and the geometric conditions of the measurement, while also discussing the influence of technical parameters on effective crack detection.
AUTOMATION IN CONSTRUCTION
(2022)
Article
Chemistry, Physical
Rafal Nowak et al.
Summary: The study presents a TLS diagnostic of a clay brick masonry arched staircase in a historic building. Experimental models were made to analyze the influence of the masonry steps on the load capacity and stiffness of the run structure. The results showed that the treads above the masonry arch were the key element responsible for the load-bearing capacity and stiffness of this type of stair flights.
Article
Geosciences, Multidisciplinary
Stefano Tavani et al.
Summary: Major advances in smartphones and tablets have transformed them into key digital platforms for geological fieldwork. The introduction of a native LiDAR scanner on the iPhone 12 Pro has brought about a potential paradigm shift in digital geological fieldwork. The performance of the iPhone 12 Pro in terms of geo-location accuracy, orientation data collection, imaging capabilities, and LiDAR scanning has been evaluated and found to be comparable to traditional geological field tools.
EARTH-SCIENCE REVIEWS
(2022)
Article
Engineering, Multidisciplinary
Jakub Siwiec et al.
Summary: This study aims to combine the TLS and SFM methods for measuring a 120m industrial chimney. The results show that with full point cloud coverage, the internal consistency of each method is achieved within a few millimeters, while the external consistency is around 10mm. Although the TLS consistency deteriorates as elevation increases, the integration of both measurement methods is still possible, even in areas with partial point cloud coverage. The integration was successful within a length of about 55m, with an average error of 13mm.
Article
Engineering, Multidisciplinary
Yuxing Cao et al.
Summary: This paper proposes a fully automatic approach for building indoor acceptance using TLS technology, including indoor segmentation and FQA. The method utilizes geometric features for indoor segmentation and applies continuous wavelet transform and simulated manual method for FQA, proving the validity and efficiency of the approach through tests on point cloud data.
Article
Engineering, Multidisciplinary
Lihua Fu et al.
Summary: The study proposes an automated method for DQA on SFCs based on TLS, including component recognition, geometric parameter estimation, and DQA. A feature-based method is used for component recognition, and geometric parameter estimation algorithms for spherical joints and cylindrical tubes are proposed. The effectiveness of the method is verified through comparison with other algorithms and validation experiments on spherical joints and cylindrical tubes.
Article
Environmental Sciences
Lorenzo Teppati Lose et al.
Summary: The launch of the new iPad Pro by Apple in March 2020 generated high interest and expectations, particularly due to the inclusion of the LiDAR sensor. This technology has implications for augmented and mixed reality applications, as well as surveying tasks. Several iOS apps have been developed to utilize the Apple LiDAR sensor for 3D data acquisition, but their performance and the positional accuracy of the acquired 3D point clouds have not been fully validated.
Article
Environmental Sciences
Amerigo Corradetti et al.
Summary: We are witnessing a digital revolution in geoscientific field data collection and sharing, driven by low-cost sensory platforms and various apps. However, the accuracy of consumer-grade 3D model acquisition platforms is often compromised for improved accessibility. Comparative analysis suggests that geotagged field-based photographs alone may not result in models with acceptable scaling errors, while iOS LiDAR acquisition apps can produce accurately scaled models but may have surface deformations caused by SLAM errors.
Article
Construction & Building Technology
C. J. Hawley et al.
Summary: In this study, the feasibility of using LiDAR scanners to detect water leakage areas in underground tunnels was explored. An automated workflow was developed to extract quantitative information of each leak, allowing for rapid capture, identification, extraction, and recording. This is crucial for preserving the integrity and strength of concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2022)
Article
Construction & Building Technology
Czeslaw Suchocki et al.
Summary: The study introduces a modified OptD method for diagnostic measurements on buildings, allowing for the retention of more points corresponding to areas of interest and removal of redundant information.
BUILDING RESEARCH AND INFORMATION
(2021)
Article
Engineering, Geological
Kun Fang et al.
Summary: The study introduced a multi-smartphone measurement system for measuring the 3D surface deformation of slope models, which showed high accuracy in both static and dynamic models. Processed by postprocessing software, the system demonstrated potential as a popular method for measuring slope models.
ENGINEERING GEOLOGY
(2021)
Article
Optics
Xueyan Huang et al.
Summary: This paper presents an event-based structured light system for high-speed 3D scanning, utilizing an event camera and a high-speed digital light projector. By triggering events with a blinking pseudo-random pattern generated by the projector, event frames are generated and digital image correlation is used to calculate displacements for deriving 3D surfaces of target objects.
Article
Chemistry, Analytical
Pengju An et al.
Summary: A new smartphone structure from motion (SfM) photogrammetric method for measuring rock joint surfaces was proposed in this study, showing comparable accuracy to a 3D laser scanner approach and the potential to become a popular method for measuring rock joint surfaces.
Article
Multidisciplinary Sciences
Gregor Luetzenburg et al.
Summary: Traditional topographic surveying in earth sciences is costly and complex, but off-the-shelf drones with optical sensors have made it more affordable. Apple's LiDAR sensors can accurately create high-resolution models and offer cost-effective alternatives to established techniques.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Christoph Gollob et al.
Summary: This study tested the use of an iPad Pro for forest inventory, showing higher detection rate and DBH measurement accuracy compared to traditional methods, despite longer data acquisition time. Consumer-level handheld devices with integrated laser scanners are expected to be developed as cost-efficient alternatives for forest inventory practice.
Proceedings Paper
Computer Science, Artificial Intelligence
HyunJun Jung et al.
Summary: This research focuses on the quality improvement of Indirect Time-of-Flight (I-ToF) imaging in real-life scenarios, proposing a new learning-based end-to-end depth prediction network that achieved high-quality long-range depth map prediction.
2021 INTERNATIONAL CONFERENCE ON 3D VISION (3DV 2021)
(2021)
Article
Chemistry, Physical
Czeslaw Suchocki
Article
Environmental Sciences
Czeslaw Suchocki et al.
Article
Construction & Building Technology
Qian Wang et al.
AUTOMATION IN CONSTRUCTION
(2019)
Article
Environmental Sciences
Marion Jaud et al.
Article
Thermodynamics
Xiangyang Xu et al.
ADVANCES IN MECHANICAL ENGINEERING
(2019)
Article
Geosciences, Multidisciplinary
Czeslaw Suchocki et al.
Article
Chemistry, Multidisciplinary
Wadea Ameen et al.
APPLIED SCIENCES-BASEL
(2018)
Proceedings Paper
Engineering, Multidisciplinary
Czeslaw Suchocki et al.
2018 BALTIC GEODETIC CONGRESS (BGC-GEOMATICS 2018)
(2018)
Article
Mechanics
Hao Yang et al.
COMPOSITE STRUCTURES
(2017)
Article
Optics
Tolga Bakirman et al.
Article
Geography, Physical
Natan Micheletti et al.
EARTH SURFACE PROCESSES AND LANDFORMS
(2015)
Article
Optics
Jason Geng
ADVANCES IN OPTICS AND PHOTONICS
(2011)
