Results 1 to 10 of about 55,134,575 (221)
Microscopic Structure from Motion (SfM) for Microscale 3D Surface Reconstruction [PDF]
Sensors, 2020 In microscale photogrammetry, the confocal microscopic imaging technique has been the dominant trend. Unlike the confocal imaging mostly for transparent objects, we propose a novel method to construct a 3D shape in microscale for various micro-sized ...
Dugan Um, Sangsoo Lee
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Measurement of Rock Joint Surfaces by Using Smartphone Structure from Motion (SfM) Photogrammetry [PDF]
Sensors, 2021 The measurement of rock joint surfaces is essential for the estimation of the shear strength of the rock discontinuities in rock engineering. Commonly used techniques for the acquisition of the morphology of the surfaces, such as profilometers and laser ...
Pengju An +4 more
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ISPRS International Journal of Geo-Information, 2021 Thanks to sensor developments, unmanned aircraft system (UAS) are the most promising modern technologies used to collect imagery datasets that can be utilized to develop agricultural applications in these days. UAS imagery datasets can grow exponentially
Anjin Chang +5 more
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A Comparative Analysis of Unmanned Aircraft Systems in Low Altitude Photogrammetric Surveys
Remote Sensing, 2022 Comparing photogrammetric performances of four user-grade unmanned aircraft systems (UAS) is the main aim of this paper. This study investigates what is the more suitable UAS for specific applications considering the required scale factor, such as for ...
Francesco Mugnai, Grazia Tucci
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Quick bathymetry mapping of a Roman archaeological site using RTK UAS-based photogrammetry
Frontiers in Earth Science, 2023 Recent technological advances are leading numerous researchers and professional users to the adoption of photogrammetric products for a wide range of geoscientific applications.
Davide Mazza +6 more
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Agronomy, 2021 In viticulture, information about vine vigour is a key input for decision-making in connection with production targets. Pruning weight (PW), a quantitative variable used as indicator of vegetative vigour, is associated with the quantity and quality of ...
Marta García-Fernández +3 more
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Evaluation of the Efficiency of SfM-Photogrammetry in Obtaining DEM from Google Earth Images [PDF]
JES: Journal of Engineering Sciences, 2023 In this study, we seek to evaluate the efficiency of SfM Photogrammetry in obtaining Digital Elevation Model (DEM) from the free Google Earth browser, by simulating the aerial photography of the terrain displayed by this browser, calculating the ...
Ahmed A Elashiry, Omar Al Khalil
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Science of Remote Sensing, 2021 Forest structure and topography can influence the ecohydrologic function and resiliency to drought and changing climate. It is, therefore, important to understand how forest restoration treatments alter snowpack distribution and design the treatments ...
Jonathon Donager +4 more
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Parallel Structure from Motion for Sparse Point Cloud Generation in Large-Scale Scenes
Sensors, 2021 Scene reconstruction uses images or videos as input to reconstruct a 3D model of a real scene and has important applications in smart cities, surveying and mapping, military, and other fields.
Yongtang Bao +6 more
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Data in Brief, 2020 The present dataset contains colour images acquired in a commercial Fuji apple orchard (Malus domestica Borkh. cv. Fuji) to reconstruct the 3D model of 11 trees by using structure-from-motion (SfM) photogrammetry.
Jordi Gené-Mola +6 more
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