Results 31 to 40 of about 23,753 (298)

Close range mini Uavs photogrammetry for architecture survey [PDF]

open access: yes, 2018
The survey of historical façades contains several bottlenecks, mainly related to the geometrical structure, the decorative framework, the presence of natural or artificial obstacles, the environment limitations.
Carnevali, Laura   +5 more
core   +5 more sources

Using image-based modelling (SfM-MVS) to produce a 1935 ortho-mosaic of the Ethiopian highlands [PDF]

open access: yes, 2014
Approximately 34,000 aerial photographs covering large parts of Ethiopia and dating back to 1935-1941 have been recently recovered. These allow investigating environmental dynamics for a past period that until now is only accessible from terrestrial ...
De Maeyer, Philippe   +5 more
core   +1 more source

Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs

open access: yesLeida 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   +1 more source

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

open access: yesThe 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   +2 more
openaire   +3 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   +1 more source

Positional Precision Analysis of Orthomosaics Derived from Drone Captured Aerial Imagery [PDF]

open access: yes, 2019
The advancement of drones has revolutionized the production of aerial imagery. Using a drone with its associated flight control and image processing applications, a high resolution orthorectified mosaic from multiple individual aerial images can be ...
Hung, I-Kuai   +3 more
core   +2 more sources

First Results of a Tandem Terrestrial-Unmanned Aerial mapKITE System with Kinematic Ground Control Points for Corridor Mapping

open access: yesRemote 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   +1 more source

Harmonizing the Landsat Ground Reference with the Sentinel-2 Global Reference Image Using Space-Based Bundle Adjustment

open access: yesRemote Sensing, 2020
There is an ever-increasing need to use an accurate and consistent geometric ground reference in the processing of remotely sensed data products, as this reduces the burden on the end-users to account for the differences between the data products from ...
Rajagopalan Rengarajan   +2 more
doaj   +1 more source

KOMPSAT-3 Digital Elevation Model Correction Based on Point-to-Surface Matching

open access: yesRemote Sensing, 2019
In order to generate digital elevation models (DEMs) from high-resolution satellite images, the vendor-provided rational polynomial coefficients (RPCs) are commonly used.
Hyoseong Lee, Michael Hahn
doaj   +1 more source

THEOS Geometric Image Quality Testing - Initial Findings [PDF]

open access: yes, 2010
This report summarizes the initial outcome of the geometric quality testing of the panchromatic, pan-sharpening and multispectral THEOS images (level 1A and 2A) acquired over the JRC Maussane Test Site for the Common Agriculture Policy (CAP) Control with
NOWAK DA COSTA JOANNA   +1 more
core   +1 more source

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