Results 21 to 30 of about 23,831 (258)

SfM photogrammetry for GeoArchaeology [PDF]

open access: yes, 2020
Geoarchaeological studies have benefits from new technological developments in remote-sensing technologies that have become an integral and important part of the archeological researches. In particular, structure-from-motion (SfM) photogrammetry is one of the most successful emerging techniques in high-resolution topography (HRT) and provides ...
Cucchiaro S.   +6 more
openaire   +4 more sources

Evaluating the Application of Close-Range Photogrammetry in Determining the Horizontal Displacement of High Structural Elements - A Case Study of the Thermal Station at Tishreen University [PDF]

open access: yesJES: Journal of Engineering Sciences
Large horizontal displacements and tilts in tall structural elements such as towers and factory chimneys resulting from soil movement or earthquakes may lead to their collapse.
Ahmed EL ashiry, Omar Elkhalil
doaj   +1 more source

Aboveground biomass estimation in linear forest objects: 2D- vs. 3D-data

open access: yesJournal of Forest Science, 2018
Wood-chips of linear forest objects (hedge banks and roadside plantings) are used as sustainable energy supply in wood-chip heating systems. However, wood yield of linear forest objects is very heterogeneous and hard to estimate in advance.
Stefan LINGNER   +2 more
doaj   +1 more source

Correcting Image Refraction: Towards Accurate Aerial Image-Based Bathymetry Mapping in Shallow Waters

open access: yesRemote Sensing, 2020
Although aerial image-based bathymetric mapping can provide, unlike acoustic or LiDAR (Light Detection and Ranging) sensors, both water depth and visual information, water refraction poses significant challenges for accurate depth estimation. In order to
Panagiotis Agrafiotis   +3 more
doaj   +1 more source

A Skeletal Camera Network for Close-range Images with a Data Driven Approach in Analyzing Stereo Configuration [PDF]

open access: yesJournal of Geodesy and Geoinformation Science, 2022
Structure-from-Motion (SfM) techniques have been widely used for 3D geometry reconstruction from multi-view images. Nevertheless, the efficiency and quality of the reconstructed geometry depends on multiple factors, i.e., the base-height ratio ...
Zhihua XU,Lingling QU
doaj   +1 more source

Geomorphological analysis using small unmanned aerial vehicles and submeter GNSS (Gara Soultana butte, High Plateaus Basin, Eastern Morocco)

open access: yesJournal of Maps, 2020
The High Plateaus Basin is an important region to understand landscape evolution and human occupation in North Africa during the Quaternary. We focused on the Gara Soultana area, applying Unmanned Aerial Vehicles, photogrammetry and a submeter Global ...
A. Benito-Calvo   +5 more
doaj   +1 more source

Towards the Industry 4.0 agenda: Practitioners' reasons why a digital transition of shop floor management visualization boards is warranted

open access: yesDigital Business, 2023
Under the umbrella of Industry 4.0 (I4.0), manufacturing companies have implemented various digital solutions, improving productivity. Shop floor management (SFM) is the core management instrument in manufacturing and is a precondition for implementing ...
Pernille Clausen
doaj   +1 more source

UAV-Photogrammetry, Deeplearning, and Structure From Motion (SFM) to Assess Solar Resources in Urban Areas [PDF]

open access: yesE3S Web of Conferences
This study introduces a high-resolution approach for assessing solar energy potential in urban areas using UAV-based photogrammetry and Structure-from-Motion (SfM) techniques.
Rissouni Youssef   +5 more
doaj   +1 more source

Historical Aerial Surveys Map Long-Term Changes of Forest Cover and Structure in the Central Congo Basin

open access: yesRemote Sensing, 2020
Given the impact of tropical forest disturbances on atmospheric carbon emissions, biodiversity, and ecosystem productivity, accurate long-term reporting of Land-Use and Land-Cover (LULC) change in the pre-satellite era (<1972) is an imperative.
Koen Hufkens   +12 more
doaj   +1 more source

Utilisation Of Laser Scanning Technology And Digital Images For Measurements Of Industrial Objects - A Case Study

open access: yesReports on Geodesy and Geoinformatics, 2015
Projection of a complicated geometry of industrial objects is the complex issue, which requires properly planned and prepared measurements. Such objects must be accurately inventoried, but their complicated nature often makes the access and the ...
Zawieska Dorota, Markiewicz Jakub
doaj   +1 more source

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