Results 21 to 30 of about 2,207,052 (295)

PRECISION OF VISUAL LOCALIZATION USING DYNAMIC GROUND CONTROL POINTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Localization is one of the first steps in navigation. Especially due to the rapid development in automated driving, a precise and reliable localization becomes essential.
P. Trusheim, C. Heipke
doaj   +1 more source

Influence de l'état d'ameublissement et de la rugosité du sol des parcelles agricoles sur l'exactitude de l'altitude des points de contrôle positionnés au GPS [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2012
Agricultural soil tilth and roughness impact on the exactness of ground control points elevation surveyed by GPS. Our goal in this study is to estimate through ranges of variation, the impact of agricultural parcels soil's tilth and roughness, due to ...
Ouédraogo, MM.   +2 more
doaj   +2 more sources

Improving the Accuracy of Aerial Photography Using Ground Control Points

open access: yesСельскохозяйственные машины и технологии, 2021
The authors showed that it is possible to quickly collect up-to-date information on the agricultural land condition using an unmanned aerial vehicle. It was noted that the use of ground control points increases the accuracy of project measurements, helps
R. K. Kurbanov   +2 more
doaj   +1 more source

Using existing infrastructure as ground control points to support citizen science coastal UAS monitoring programs

open access: yesFrontiers in Environmental Science, 2023
Recent publications have described the ability of citizen scientists to conduct unoccupied aerial system (UAS) flights to collect data for coastal management.
Lucas F. Rabins   +3 more
doaj   +1 more source

Examining the impact of Ground Control point quantity on the geometric accuracy of UAV photogrammetric products formed using Structure-from-Motion approach [PDF]

open access: yesTehnika, 2023
The positional and vertical accuracy of UAV aerial photogrammetry products generated using the Structure from Motion (SfM) approach depends on various factors, such as flight plan parameters, camera quality, camera calibration, the SfM algorithm used ...
Nikolić Ratko R.   +2 more
doaj   +1 more source

Set-point Control for a Ground-based Reconfigurable Robot

open access: yes2022 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2022
Reconfigurable mobile robots are well suited for inspection tasks in legacy nuclear facilities where access is restricted and the environment is often cluttered. A reconfigurable snake robot, MIRRAX, has previously been developed to investigate such facilities.
Wei Cheah   +3 more
openaire   +3 more sources

Influence of the shape and size of the ground targets on the accuracy of photogrammetric processing

open access: yesRUDN Journal of Ecology and Life Safety, 2020
The materials obtained from the unmanned aerial vehicle (UAV) are used to solve many problems, including large-scale mapping and monitoring of linear objects, as well as the ecological situation and monitoring of emergency situations.
Amr Elsheshtawy   +3 more
doaj   +1 more source

MULTI-GNSS PPP: An Alternative Positioning Technique for Establishing Ground Control Points

open access: yesInternational Journal of Environment and Geoinformatics, 2020
Traditionally, ground control points (GCPs) are utilized to determine absolute image orientations indirectly in aerial triangulation. For a long time, differential and relative GNSS (Global Navigation Satellite System) positioning techniques have been ...
Berkay Bahadur, Metin Nohutçu
doaj   +1 more source

Factors Influencing the Accuracy of Shallow Snow Depth Measured Using UAV-Based Photogrammetry

open access: yesRemote Sensing, 2021
Factors influencing the accuracy of UAV-photogrammetry-based snow depth distribution maps were investigated. First, UAV-based surveys were performed on the 0.04 km2 snow-covered study site in South Korea for 37 times over the period of 13 days under 16 ...
Sangku Lee   +3 more
doaj   +1 more source

ALTERNATIVE GCP SOURCES FOR ACCURATE HD MAP PRODUCTION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
In Taiwan, map companies have to referenced the HD Maps guideline and standard which published in TAICS, Taiwan to make ensure the quality of data. The procedure costs lots of times and resources.
M.-L. Tsai   +5 more
doaj   +1 more source

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