[HTML][HTML] Photogrammetry using UAV-mounted GNSS RTK: Georeferencing strategies without GCPs

M Štroner, R Urban, J Seidl, T Reindl, J Brouček - Remote Sensing, 2021 - mdpi.com
Georeferencing using ground control points (GCPs) is the most common strategy in
photogrammetry modeling using unmanned aerial vehicle (UAV)-acquired imagery. With the …

[HTML][HTML] A new method for UAV lidar precision testing used for the evaluation of an affordable DJI ZENMUSE L1 scanner

M Štroner, R Urban, L Línková - Remote Sensing, 2021 - mdpi.com
Lately, affordable unmanned aerial vehicle (UAV)-lidar systems have started to appear on
the market, highlighting the need for methods facilitating proper verification of their accuracy …

Accuracy assessment of RTK/PPK UAV-photogrammetry projects using differential corrections from multiple GNSS fixed base stations

P Martínez-Carricondo, F Agüera-Vega… - Geocarto …, 2023 - Taylor & Francis
Unmanned aerial vehicles (UAVs) equipped with global navigation satellite system-real-time
kinematic (GNSS RTK) receivers allow direct georeferencing of the photogrammetric project …

[HTML][HTML] Direct georeferencing UAV-SfM in high-relief topography: Accuracy assessment and alternative ground control strategies along steep inaccessible rock …

PR Nesbit, SM Hubbard, CH Hugenholtz - Remote Sensing, 2022 - mdpi.com
Steep rock slopes present key opportunities and challenges within Earth science
applications. Due to partial or complete inaccessibility, high-precision surveys of these high …

[HTML][HTML] Accuracy assessment of uav-photogrammetric-derived products using PPK and GCPs in challenging terrains: In search of optimized rockfall mapping

B Žabota, M Kobal - Remote Sensing, 2021 - mdpi.com
Unmanned aerial photogrammetric surveys are increasingly being used for mapping and
studying natural hazards, such as rockfalls. Surveys using unmanned aerial vehicles (UAVs) …

[HTML][HTML] How image acquisition geometry of UAV campaigns affects the derived products and their accuracy in areas with complex geomorphology

A Kyriou, K Nikolakopoulos, I Koukouvelas - ISPRS International Journal …, 2021 - mdpi.com
The detailed and accurate mapping of landscapes and their geomorphological
characteristics is a key issue in hazard management. The current study examines whether …

UAV DTM acquisition in a forested area–comparison of low-cost photogrammetry (DJI Zenmuse P1) and LiDAR solutions (DJI Zenmuse L1)

M Štroner, R Urban, T Křemen… - European Journal of …, 2023 - Taylor & Francis
In this paper, we evaluated the results in terms of accuracy and coverage of the LiDAR-UAV
system DJI Zenmuse L1 and Digital Aerial Photogrammetric system (DAP–UAV) DJI …

Optimising UAV data acquisition and processing for photogrammetry: a review

K Pargieła - Geomatics and Environmental Engineering, 2023 - yadda.icm.edu.pl
Unmanned aerial vehicles (UAVs) are used to acquire measurement data for an increasing
number of applications. Photogrammetric studies based on UAV data, thanks to the …

Centimetre-range deformations of built environment revealed by drone-based photogrammetry

S Varbla, A Ellmann, R Puust - Automation in Construction, 2021 - Elsevier
Deformation monitoring is an important component of the construction process and
maintenance. Conventional point-wise surveying methods, however, tend to be time …

[HTML][HTML] Assessment and prediction of impact of flight configuration factors on UAS-based photogrammetric survey accuracy

Y Liu, K Han, W Rasdorf - Remote Sensing, 2022 - mdpi.com
Recent advances in computer vision and camera-equipped unmanned aerial systems (UAS)
for 3D modeling enable UAS-based photogrammetry surveys with high spatial-temporal …