Results 11 to 20 of about 357,372 (218)

Drone-Enabled Multimodal Platform for Inspection of Industrial Components

open access: yesIEEE Access, 2022
In the rise of recent advancements in unmanned aerial vehicles, many studies have focused on using multi-modal platforms for remote inspection of industrial and construction sites.
Parham Nooralishahi   +2 more
doaj   +1 more source

Integration of DInSAR-PS-Stacking and SBAS-PS-InSAR Methods to Monitor Mining-Related Surface Subsidence

open access: yesRemote Sensing, 2023
Over-exploitation of coal mines leads to surface subsidence, surface cracks, collapses, landslides, and other geological disasters. Taking a mining area in Nalintaohai Town, Ejin Horo Banner, Ordos City, Inner Mongolia Autonomous Region, as an example ...
Yuejuan Chen   +8 more
doaj   +1 more source

Development and Evaluation of a UAV-Photogrammetry System for Precise 3D Environmental Modeling

open access: yesSensors, 2015
The specific requirements of UAV-photogrammetry necessitate particular solutions for system development, which have mostly been ignored or not assessed adequately in recent studies.
Mozhdeh Shahbazi   +3 more
doaj   +1 more source

Geocoding Error Correction for InSAR Point Clouds

open access: yesRemote Sensing, 2018
Persistent Scatterer Interferometry (PSI) is an advanced multitemporal InSAR technique that is capable of retrieving the 3D coordinates and the underlying deformation of time-coherent scatterers.
Sina Montazeri   +2 more
doaj   +1 more source

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

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   +1 more source

ASSESSING THE VIABILITY OF PPK TECHNIQUES FOR ACCURATE MAPPING WITH UAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Utilizing ground control points (GCPs) to georeference photogrammetry-based point cloud data is a common practice in unmanned aerial system (UAS) mapping.
R. Tamimi, C. Toth
doaj   +1 more source

Determining the Suitable Number of Ground Control Points for UAS Images Georeferencing by Varying Number and Spatial Distribution

open access: yesRemote Sensing, 2020
Currently, products that are obtained by Unmanned Aerial Systems (UAS) image processing based on structure-from-motion photogrammetry (SfM) are being investigated for use in high precision projects.
Valeria-Ersilia Oniga   +3 more
doaj   +1 more source

Accurate Positioning with Stereo SAR Images and One Ground Control Point

open access: yesLeida xuebao, 2014
Geometrical imaging models and calculations of orientation parameters are the main factors affecting the positioning of stereo Synthetic Aperture Radar (SAR) images.
Zhang Hong-min   +3 more
doaj   +1 more source

Feasibility of Replacing the Range Doppler Equation of Spaceborne Synthetic Aperture Radar Considering Atmospheric Propagation Delay with a Rational Polynomial Coefficient Model

open access: yesSensors, 2020
Usually, the rational polynomial coefficient (RPC) model of spaceborne synthetic aperture radar (SAR) is fitted by the original range Doppler (RD) model.
Shasha Hou   +4 more
doaj   +1 more source

Tree cover change detection through Artificial Neural Network classification using Landsat TM and ETM+ images (case study: Golestan Province, Iran) [PDF]

open access: yesتحقیقات جنگل و صنوبر ایران, 2008
The aim of this research was to detect tree cover changes through Artificial Neural Network classification and post-classification comparison methods using landsat TM and ETM+ images in Golestan province, north of Iran with area of 20437.74 ha. Land uses
Abdorrasool Salman Mahini   +3 more
doaj  

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