Results 21 to 30 of about 2,732 (249)

A landslide monitoring method using data from unmanned aerial vehicle and terrestrial laser scanning with insufficient and inaccurate ground control points

Journal of Rock Mechanics and Geotechnical Engineering
Non-contact remote sensing techniques, such as terrestrial laser scanning (TLS) and unmanned aerial vehicle (UAV) photogrammetry, have been globally applied for landslide monitoring in high and steep mountainous areas.
Jiawen Zhou, Nan Jiang, Congjiang Li, Haibo Li   +3 more
doaj   +2 more sources

Ground Control Points (GCPs) for Mangrove and Nipa Palm Classification in the Niger Delta

, 2022
GCPs were established by collecting GPS coordinates of 6 land cover types (Mangrove Forests, Nipa palm, Inland forests, Surface water, Built regions and Agricultural land) over the Niger Delta.
Nwobi, Chukwuebuka, School of GeoSciences   +1 more
core   +2 more sources

GNSS Accuracy Analysis for Efficiency of Ground Control Point (GCP) Measurement

International Journal on Advanced Science, Engineering and Information Technology, 2020
Nowadays, the Global Navigation Satellite System (GNSS) has a significant role in the field of surveying and mapping, especially in determining the coordinates of ground control points for rectifying aerial photography, satellite imagery and airborne lidar.
- Khomsin, Ira Mutiara Anjasmara, Rizky Romadhon   +2 more
openaire   +1 more source

Fagradalsfjall (Iceland) 2021 Eruption Ground Control Points (GCPs)

, 2022
This item contains the names and location of Ground Control Points (GCPs) used to georeference UAS surveys conducted during the 2021‒2022 eruption Fagradalsfjall eruption in Iceland.
Michael Steven Christoffersen (10063615), Birgir Óskarsson (13900482), Guðmundur Valsson (13900483), William Moreland (13900485), Christopher W. Hamilton (9362888), Joana Ruth Charlotte Voigt (9385037), Nathan Hadland (13900488), Alexia Kubas (13900492), Brett Carr (13555234)   +8 more
core   +1 more source

Combined Block Adjustment for Optical Satellite Stereo Imagery Assisted by Spaceborne SAR and Laser Altimetry Data

Remote Sensing, 2021
To ensure the accuracy of large-scale optical stereo image bundle block adjustment, it is necessary to provide well-distributed ground control points (GCPs) with high accuracy. However, it is difficult to acquire control points through field measurements
Guo Zhang, Boyang Jiang, Taoyang Wang, Yuanxin Ye, Xin Li   +4 more
doaj   +1 more source

Utilization of Unmanned Aerial Vehicle (UAV) for Topographic Survey Using Ground Control Points (GCP) from Geodetic GNSS

Aceh International Journal of Science and Technology, 2023
In connection with the development plan of the USK campus II area, it is necessary to map the area to support and complete the necessary data. Mapping with an Unmanned Aerial Vehicle (UAV) is a strategy or way for large-scale mapping with a faster and more efficient time. It can save time compared to using conventional survey methods.
Nizamuddin Nizamuddin, Freddy Sapta Wirandha, Ardiansyah .   +2 more
openaire   +2 more sources

THE SYSTEM OVERVIEW AND GEOMETRIC IMAGE QUALITY OF THE TH-1 SATELLITE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The Tian-Hui 1 (TH-1) is the first stereo mapping transmission satellite in China, and the primary mission goal of the satellite is for topographic mapping at 1:50,000 scale without Ground Control Points (GCPs).
J. Wang, J. Wang, X. Hu
doaj   +1 more source

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

The 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

LiDAR-derived high quality ground control information and DEM for image orthorectification [PDF]

, 2007
Orthophotos (or orthoimages if in digital form) have long been recognised as a supplement or alternative to standard maps. The increasing applications of orthoimages require efforts to ensure the accuracy of produced orthoimages.
Chandra, Shobhit, Liu, Xiaoye, Zhang, Zhenyu, Peterson, Jim   +3 more
core   +1 more source

OPTIMIZATION OF GROUND CONTROL POINT (GCP) CONFIGURATION FOR UNMANNED AERIAL VEHICLE (UAV) SURVEY USING STRUCTURE FROM MOTION (SFM) [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019
Abstract. This research presents a method in assessing the impact of Ground Control Point (GCP) distribution, quantity, and inter-GCP distances on the output Digital Elevation Model (DEM) by utilizing SfM and GIS. The study was carried out in a quarry site to assess the impacts of these parameters on the accuracy of accurate volumetric measurements UAV
J. K. S. Villanueva, A. C. Blanco, A. C. Blanco   +2 more
openaire   +3 more sources