Results 11 to 20 of about 13,814,223 (289)

Remotely Sensed Ground Control Points [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Accurate ground control is required to georeferenced airborne and spaceborne images. The production of ortho-photogrammetric data requires ground control that is traditionally provided as Ground Control Points (GCPs) by GNSS measurements in the field ...
P. Hummel
doaj   +4 more sources

Multifunctional Ground Control Points with a Wireless Network for Communication with a UAV [PDF]

open access: yesSensors, 2019
Ground control points (GCPs) are commonly used for georeferencing in remote sensing. Precise position measurement of the GCPs typically requires careful ground surveying, which is time-consuming and labor-intensive and thus excessively costly if it needs
Xiongzhe Han   +5 more
doaj   +6 more sources

Improving the Accuracy of Aerial Photography Using Ground Control Points [PDF]

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   +3 more sources

Generation of Virtual Ground Control Points Using a Binocular Camera

open access: yesDrones
This paper presents a methodology for generating virtual ground control points (VGCPs) using a binocular camera mounted on a drone. We compare the measurements of the binocular and monocular cameras between the classical method and the proposed one. This
Ariel Vazquez-Dominguez   +5 more
doaj   +3 more sources

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

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   +2 more sources

Geometric Positioning for Satellite Imagery without Ground Control Points by Exploiting Repeated Observation [PDF]

open access: yesSensors, 2017
With the development of space technology and the performance of remote sensors, high-resolution satellites are continuously launched by countries around the world.
Zhenling Ma   +3 more
doaj   +2 more sources

A New Method for Positional Accuracy Analysis in Georeferenced Satellite Images without Independent Ground Control Points

open access: yesRemote Sensing, 2020
This paper introduces a new method to analyze the positional accuracy of georeferenced satellite images without the use of ground control points.
Miguel Sánchez   +3 more
doaj   +2 more sources

Terrestrial photogrammetry without ground control points [PDF]

open access: yesEarth Science Informatics, 2013
Terrestrial photogrammetry should be the survey technique of choice when updating large scale urban maps and GIS databases, where 3D data and attribute data are required. Its main drawback is the need for Ground Control Points (GCP) to reference the survey.
Gianfranco Forlani   +3 more
openaire   +4 more sources

DEM Generation from Fixed-Wing UAV Imaging and LiDAR-Derived Ground Control Points for Flood Estimations [PDF]

open access: yesSensors, 2019
Geospatial products, such as digital elevation models (DEMs), are important topographic tools for tackling local flood studies. This study investigates the contribution of LiDAR elevation data in DEM generation based on fixed-wing unmanned aerial vehicle
Jairo R. Escobar Villanueva   +2 more
doaj   +2 more sources

Semi-Automatic Selection of Ground Control Points for High Resolution Remote Sensing Data in Urban Areas

open access: yesApplied Computer Systems, 2016
Geometrical accuracy of remote sensing data often is ensured by geometrical transforms based on Ground Control Points (GCPs). Manual selection of GCP is a time-consuming process, which requires some sort of automation. Therefore, the aim of this study is
Gulbe Linda, Korāts Gundars
doaj   +2 more sources

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