Results 101 to 110 of about 2,580 (187)

The Synergistic Effects of GCPs and Camera Calibration Models on UAV-SfM Photogrammetry

Drones
Previous studies have shown that the use of appropriate ground control points (GCPs) and camera calibration models can optimize photogrammetry. However, the synergistic effects of GCPs and camera calibration models on UAV-SfM photogrammetry are still ...
Zixin Wang, Leyan Shi, Jinzhou Li, Wen Dai, Wangda Lu, Mengqi Li   +5 more
doaj   +1 more source

Correction of Refraction Effects on Unmanned Aerial Vehicle Structure-from-Motion Bathymetric Survey for Coral Reef Roughness Characterisation

Remote Sensing
Coral reefs play a crucial role in tropical coastal ecosystems, even though these environments are difficult to monitor due to their diversity and morphological complexity and due to their shallowness in some cases.
Marion Jaud, Mila Geindre, Stéphane Bertin, Yoan Benoit, Emmanuel Cordier, France Floc’h, Emmanuel Augereau, Kévin Martins   +7 more
doaj   +1 more source

Documentation of Historical City Using Oblique UAV Imagery: Case Study of the Traditional Terrace of the Jewish Neighbourhood in Akre.

Zanco Journal of Pure and Applied Sciences
UAV photogrammetry is a crucial technique for conserving cultural heritage sites, particularly oblique images. However, studies on this method are limited.
Shireen Younus Ismael
doaj   +1 more source

Study on UAV observation methods for surface subsidence caused by multiple coal seams mining in western mining areas

Meikuang Anquan
In the western mining area, coal mining is characterized by shallow burial depth, thin bedrock, multi coal seam mining, and a fragile surface environment.
Jianting CUI, Kun WANG, Guojian LIU, Junyang ZHANG, Di YANG, Tongbin ZHAO, Junsheng LI   +6 more
doaj   +1 more source

Using UAV Photogrammetry to Analyse Changes in the Coastal Zone Based on the Sopot Tombolo (Salient) Measurement Project. [PDF]

Sensors (Basel), 2020
Burdziakowski P, Specht C, Dabrowski PS, Specht M, Lewicka O, Makar A.   +5 more
europepmc   +1 more source

Precise Positioning in Nitrogen Fertility Sensing in Maize (Zea mays L.)

Sensors
This study documented the contribution of precise positioning involving a global navigation satellite system (GNSS) and a real-time kinematic (RTK) system in unmanned aerial vehicle (UAV) photogrammetry, particularly for establishing the coordinate data ...
Tri Setiyono
doaj   +1 more source

Influence of Image TIFF Format and JPEG Compression Level in the Accuracy of the 3D Model and Quality of the Orthophoto in UAV Photogrammetry. [PDF]

J Imaging, 2020
Alfio VS, Costantino D, Pepe M.
europepmc   +1 more source

Application of UAV photogrammetry technology in identifying discontinuities in slopes in the Pulang copper mine. [PDF]

Sci Rep
Wu L, Wang Y, Yang J, Wang B, Wang S, Yang X, Liu X, Leng Z.   +7 more
europepmc   +1 more source

Evaluating Water Level Changes at Different Tidal Phases Using UAV Photogrammetry and GNSS Vertical Data. [PDF]

Sensors (Basel), 2019
Mohamad N, Abdul Khanan MF, Ahmad A, Md Din AH, Shahabi H.   +4 more
europepmc   +1 more source

UAV photogrammetry and lidar integration for high-fidelity 3D campus mapping at KFUPM. [PDF]

Sci Rep
Keshk HM, Abdallah AM, Almutairi S, Alshuail A.   +3 more
europepmc   +1 more source