Results 11 to 20 of about 2,580 (187)
UAV photogrammetry in the post-earthquake scenario: case studies in L'Aquila [PDF]
Geomatics, Natural Hazards and Risk, 2017 The main advantage of using the Unmanned Aerial Vehicle (UAV) photogrammetry in a post-earthquake scenario is the ability to completely document the state of the structures and infrastructures, damaged by the earthquake, ensuring the safety of all ...
Donatella Dominici +2 more
exaly +4 more sources
Multi-Camera Imaging System for UAV Photogrammetry [PDF]
Sensors, 2018 In the last few years, it has been possible to observe a considerable increase in the use of unmanned aerial vehicles (UAV) equipped with compact digital cameras for environment mapping. The next stage in the development of photogrammetry from low altitudes was the development of the imagery data from UAV oblique images.
Damian Wierzbicki
exaly +6 more sources
UAV Photogrammetry under Poor Lighting Conditions—Accuracy Considerations [PDF]
Sensors, 2021 The use of low-level photogrammetry is very broad, and studies in this field are conducted in many aspects. Most research and applications are based on image data acquired during the day, which seems natural and obvious. However, the authors of this paper draw attention to the potential and possible use of UAV photogrammetry during the darker time of ...
Pawel Burdziakowski +2 more
exaly +6 more sources
UAV LINEAR PHOTOGRAMMETRY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 The photogrammetric treatment of images acquired on a linear axis is a problematic case. Such tricky configurations often leads to bended 3D models, described as a bowl effect, which requires ground measurements to be fixed.
V. Tournadre +2 more
doaj +4 more sources
Remote Sensing, 2022 Surface subsidence caused by coal mining has become an important factor that affects and restricts the sustainable development of mining districts. It is necessary to use appropriate methods for effective subsidence monitoring.
Xugang Lian, Linlin Ge, Wenfu Yang
exaly +3 more sources
UAV-BASED SORGHUM GROWTH MONITORING: A COMPARATIVE ANALYSIS OF LIDAR AND PHOTOGRAMMETRY [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 Canopy height (CH) and leaf area index (LAI) provide key information about crop growth and productivity. A rapid and accurate retrieval of CH and LAI is critical for a variety of agricultural applications.
M. Maimaitijiang +12 more
doaj +1 more source
Journal of Hydroinformatics, 2023 Flow-regulated stormwater ponds providing safe outflow discharges prevail as the primary stormwater management tool for stream protections. Detailed pond geometries are essential metrics in pond monitoring technologies, which convert the point-based ...
Guohan Zhao +7 more
doaj +1 more source
IMPROVING UAV TELEMETRY POSITIONING FOR DIRECT PHOTOGRAMMETRY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Abstract. A fundamental step of UAV photogrammetric processes is to collect Ground Control Points (GCPs) by means of geodetic-quality GNSS receivers or total stations, thus obtaining an absolutely oriented model with a centimetric accuracy. This procedure is usually time-consuming, expensive and potentially dangerous for operators who sometimes need to
Lorenzo Rossi +4 more
openaire +4 more sources
Development and Evaluation of a UAV-Photogrammetry System for Precise 3D Environmental Modeling [PDF]
Sensors, 2015 Mozhdeh Shahbazi +2 more
exaly +2 more sources
Tracking the Evolution of Riverbed Morphology on the Basis of UAV Photogrammetry [PDF]
Remote Sensing, 2021 Unmanned aerial vehicle (UAV) photogrammetry has recently become a widespread technique to investigate and monitor the evolution of different types of natural processes. Fluvial geomorphology is one of such fields of application where UAV potentially assumes a key role, since it allows for overcoming the intrinsic limits of satellite and airborne-based
Gracchi T. +5 more
openaire +2 more sources