Results 11 to 20 of about 266,265 (255)

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   +7 more sources

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   +3 more sources

A High-Accuracy GNSS Dataset of Ground Truth Points Collected within Îles-de-Boucherville National Park, Quebec, Canada

open access: yesData, 2021
A new ground truth dataset generated with high-accuracy Global Navigation Satellite Systems (GNSS) positional data of the invasive reed Phragmites australis subsp. australis within Îles-de-Boucherville National Park (Quebec, Canada) is described.
Kathryn Elmer, Margaret Kalacska
doaj   +3 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   +3 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

Correction of Pushbroom Satellite Imagery Interior Distortions Independent of Ground Control Points

open access: yesRemote Sensing, 2018
Compensating for distortions in pushbroom satellite imagery has a bearing on subsequent earth observation applications. Traditional distortion correction methods usually depend on ground control points (GCPs) acquired from a high-accuracy geometric ...
Guo Zhang   +3 more
doaj   +3 more sources

Accuracy of Unmanned Aerial Vehicle (UAV) and SfM Photogrammetry Survey as a Function of the Number and Location of Ground Control Points Used

open access: yesRemote Sensing, 2018
The geometrical accuracy of georeferenced digital surface models (DTM) obtained from images captured by micro-UAVs and processed by using structure from motion (SfM) photogrammetry depends on several factors, including flight design, camera quality ...
Enoc Sanz-Ablanedo   +3 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   +2 more sources

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

open access: yesThe 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

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