Results 11 to 20 of about 12,566,784 (250)
PRECISE AERIAL IMAGE ORIENTATION USING SAR GROUND CONTROL POINTS FOR MAPPING OF URBAN LANDMARKS [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 Highly precise ground control points, which are globally available, can be derived from the SAR satellite TerraSAR-X. This opens up many new applications like for example the precise aerial image orientation.
F. Kurz +4 more
doaj +3 more sources
Drones, 2022 Recently, multirotor UAVs have been widely used in high-precision terrain mapping, cadastral surveys and other fields due to their low cost, flexibility, and high efficiency.
Jia Yang +5 more
doaj +2 more sources
Remotely Sensed Ground Control Points [PDF]
The 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 +2 more sources
Target Influence on Ground Control Points (GCPs) Identification in Aerial Images
IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020 Unmanned aerial vehicles (UAVs) are used nowadays as a standard tool to derive very high-resolution geospatial data. However, UAV payload limitation imposes the use of not such reliable hardware affecting the georeferencing precision. In the literature it is possible to find numerous studies investigating the parameters influencing UAV-based products ...
Emanuel Peres +2 more
exaly +3 more sources
Applied 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
Multifunctional Ground Control Points with a Wireless Network for Communication with a UAV
Sensors, 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 +2 more sources
GEOMETRIC CALIBRATION OF ZIYUAN-3 THREE-LINE CAMERAS COMBINING GROUND CONTROL POINTS AND LINES [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016 Due to the large biases between the laboratory-calibrated values of the orientation parameters and their in-orbit true values, the initial direct georeferencing accuracy of the Ziyuan-3 (ZY-3) three-line camera (TLC) images can only reach the kilometre ...
J. Cao +4 more
doaj +2 more sources
Remote Sensing, 2017 In this article, we report about the first results of the mapKITE system, a tandem terrestrial-aerial concept for geodata acquisition and processing, obtained in corridor mapping missions.
Pere Molina +3 more
doaj +2 more sources
Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs
Leida xuebao, 2012 High-precision height acquisition needs to correct the interferometric parameters errors by interferometric calibration for Interferometric Synthetic Aperture Radar (InSAR) system with many Ground Control Points (GCPs).
Hu Ji-wei, Hong Jun, Ming Feng, Li Liang
doaj +2 more sources
Optimization of Number of GCPs and Placement Strategy for UAV-Based Orthophoto Production
Applied SciencesUnmanned aerial vehicles (UAVs) have been employed to perform aerial surveys in many industries owing to their versatility, relatively low cost, and efficiency.
Dong-Min Seo +4 more
doaj +3 more sources