Results 11 to 20 of about 501,352 (163)
Indirect UAV Strip Georeferencing by On-Board GNSS Data under Poor Satellite Coverage [PDF]
Remote Sensing, 2019 The so-called Real Time Kinematic (RTK) option, which allows one to determine with cm-level accuracy the Unmanned Aerial Vehicles (UAV) camera position at shooting time, is also being made available on medium- or low-cost drones.
Gianfranco Forlani +2 more
exaly +7 more sources
Direct Georeferencing of Stationary LiDAR
Remote Sensing, 2009 Unlike mobile survey systems, stationary survey systems are given very little direct georeferencing attention. Direct Georeferencing is currently being used in several mobile applications, especially in terrestrial and airborne LiDAR systems ...
Ahmed Mohamed, Benjamin Wilkinson
exaly +4 more sources
Georeferencing experiments with UAS imagery [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014 Comparing typical airborne mapping systems with Unmanned Airborne Systems (UAS) developed for mapping purposes, there are several advantages and disadvantages of both systems.
G. Jóźków, C. Toth
doaj +2 more sources
Comparison of Direct and Indirect Georeferencing Methods Using Satellite Linear Array Iimages [PDF]
فصلنامه علوم و فناوری فضایی, 2015 Comparison of direct and indirect methods for georeferencing of satellite linear array stereo images is proposed in this paper. In direct method, collinear condition and orbital elements are used for geolocation of pixels and ground control points (GCPs)
Ahmad Izadipour +3 more
doaj +1 more source
Serum geoepidemiology of leprosy biomarkers in a city-wide COVID-19 survey in Brazil [PDF]
BMC Infectious DiseasesBackground COVID-19 has created a significant global health emergency and triggered numerous seroepidemiological field tracing initiatives. The use of these samples becomes a timely tool for intensifying active case finding and early diagnosis of leprosy.
Filipe Rocha Lima +9 more
doaj +2 more sources
Accuracy assessment of high-resolution terrain data produced from UAV images georeferenced with on-board PPK positioning [PDF]
Journal of the Bulgarian Geographical Society, 2023 In recent years, unmanned aerial vehicles (UAVs) have increased rapidly and successfully established themselves as a tool for the rapid collection of high-resolution images as baseline data in land cover studies and topographic mapping. In photogrammetry
Davis Dinkov
doaj +3 more sources
Improving Linear Projects Georeferencing to Create Digital Models Using UAV Imagery [PDF]
E3S Web of Conferences, 2021 Global Positioning System (GPS) on Unmanned Aerial Vehicles (UAV) platform relies on Micro Electro Mechanical Systems (MEMS) technology with a precision of 10 m at shooting time at UAV camera stations positions.
Elsheshtawy Amr M., Gavrilova Larisa A.
doaj +1 more source
TERRESTRIAL 3D MAPPING OF FORESTS: GEOREFERENCING CHALLENGES AND SENSORS COMPARISONS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Terrestrial 3D reconstruction is a research topic that has recently received significant attention in the forestry sector. This practice enables the acquisition of high-quality 3D data, which can be used not only to derive physical forest criteria such ...
C. R. Fol +4 more
doaj +1 more source
PPK PROCESSING TO BOOST UAS ACCURACY IN CADASTRAL MAPPING [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Unmanned Aerial Systems (UAS) are increasingly used in different applications, including 3D urban modelling, cadastral mapping, urban planning, GIS information system and other fields because of their advantages.
V. E. Oniga +8 more
doaj +1 more source
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
doaj +1 more source