Results 21 to 30 of about 647 (152)
Applied Sciences, 2022 Unmanned aerial vehicles (UAVs) can provide valuable spatial information products for many projects across a wide range of applications. One of the major challenges in this discipline is the quality of positioning accuracy of the resulting mapping ...
Shaker Ahmed +3 more
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Assessing the georeferencing accuracy of different amount of image stripes for linear UAV projects
RUDN Journal of Ecology and Life Safety, 2020 At present, the results of photogrammetric processing of images obtained from UAVs (orthophoto mosaics, digital elevation models, etc.) are widely used for environmental studies.
Amr Mahmoud El Sheshtawy +3 more
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Remote Sensing, 2021 Unmanned aerial photogrammetric surveys are increasingly being used for mapping and studying natural hazards, such as rockfalls. Surveys using unmanned aerial vehicles (UAVs) can be performed in remote, hardly accessible, and dangerous areas, while the ...
Barbara Žabota, Milan Kobal
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Terrestrial laser scanners pre-processing: registration and georeferencing
, 2014 Terrestrial laser scanner (TLS) is a non-contact sensor, optics-based instrument that collects three dimensional (3D) data of a defined region of an object surface automatically and in a systematic pattern with a high data collecting rate.
Ariff, Mohd Farid Mohd +7 more
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Terrestrial, Atmospheric and Oceanic Sciences, 2023 Traditional indirect georeferencing requires time-consuming and labor-intensive field surveys to obtain ground control points (GCPs), making it challenging to apply in high-risk areas with limited accessibility.
Cheng-Hao Lu +3 more
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Drones, 2023 Image-based unmanned aircraft systems (UASs) are used in a variety of geodetic applications. Precise 3D terrain surface mapping requires ground control points (GCPs) for scaling and (indirect) georeferencing.
Denise Becker, Jörg Klonowski
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Analiza vplivov na kakovost izdelkov UAV (= Analysis of the impacts on the quality of UAV photogrammetric products) [PDF]
Geodetski Vestnik, 2020 Unmanned aerial vehicles, equipped with various sensors and devices, are increasingly used to acquire geospatial data in geodesy, geoinformatics, and environmental studies.
Mojca Kosmatin Fras +3 more
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THE INFLUENCE OF GROUND CONTROL POINTS CONFIGURATION AND CAMERA CALIBRATION FOR DTM AND ORTHOMOSAIC GENERATION USING IMAGERY OBTAINED FROM A LOW-COST UAV [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Technological improvement of Unmanned Aerial Vehicles (UAVs) and computer vision algorithms, such as Structured-from-Motion (SfM) and Multi-view Stereo (MVS) have provided the possibility for high-resolution mapping and high-density point cloud ...
M. V. Y. Garcia, H. C. Oliveira
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MULTI-SCALE MATCHING FOR THE AUTOMATIC LOCATION OF CONTROL POINTS IN LARGE SCALE AERIAL IMAGES USING TERRESTRIAL SCENES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 A technique to automatically locate Ground Control Points (GCPs) in large aerial images is presented considering the availability of low accuracy direct georeferencing data. The approach is based on image chips of GCPs extracted from vertical terrestrial
A. Berveglieri, A. M. G. Tommaselli
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ANALYSIS OF MOBILE LASER SCANNING DATA AND MULTI-VIEW IMAGE RECONSTRUCTION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012 The combination of laser scanning (LS, active, direct 3D measurement of the object surface) and photogrammetry (high geometric and radiometric resolution) is widely applied for object reconstruction (e.g.
C. Briese +10 more
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