Results 31 to 40 of about 1,854 (193)

EVALUATION OF SAR DATA AS SOURCE OF GROUND CONTROL INFORMATION: FIRST RESULTS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
The high resolution imaging modes of modern SAR sensors has made SAR data compatible with optical images. SAR data offers various capabilities which can enhance the geometric correction process of optical images (accurate, direct and ground-independent
D. I. Vassilaki   +2 more
doaj   +1 more source

The Development of an UAV Borne Direct Georeferenced Photogrammetric Platform for Ground Control Point Free Applications

open access: yesSensors, 2012
To facilitate applications such as environment detection or disaster monitoring, the development of rapid low cost systems for collecting near real time spatial information is very critical.
Chien-Hsun Chu   +2 more
doaj   +1 more source

Assessing the georeferencing accuracy of different amount of image stripes for linear UAV projects

open access: yesRUDN Journal of Ecology and Life Safety, 2020
At present, the results of photogrammetric processing of images obtained from UAVs (orthophoto mosaics, digital elevation models, etc.) are widely used for environmental studies.
Amr Mahmoud El Sheshtawy   +3 more
doaj   +1 more source

A SYSTEMATIC COMPARISON OF DIRECT AND IMAGE-BASED GEOREFERENCING IN CHALLENGING URBAN AREAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Image-based mobile mapping systems enable an efficient acquisition of georeferenced image sequences, which can be used for geo-data capture in subsequent steps. In order to provide accurate measurements in a given reference frame while e.g.
S. Cavegn   +3 more
doaj   +1 more source

HIGH-PRECISION POSITIONING AND REAL-TIME DATA PROCESSING OF UAV-SYSTEMS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Available micro-sized Unmanned Aerial Vehicles (UAVs) in the civilian domain currently make use of common GPS receivers and do not address scenarios where high-precision positioning of the UAV is an inevitable requirement.
M. Rieke   +3 more
doaj   +1 more source

ANALISIS AKURASI PEMETAAN MENGGUNAKAN DIRECT GEOREFERENCING

open access: yesGEOMATIKA, 2018
Banyak tantangan yang harus dihadapi ketika melaksanakan survei <br />Ground Control Point (GCP). Salah satu upaya meminimalisir jumlah titik kontrol adalah melakukan pengukuran posisi dan orientasi foto udara tanpa GCP, atau disebut direct georeferencing .
Danang Budi Susetyo, Herjuno Gularso
openaire   +1 more source

Drones and Real-Time Kinematic Base Station Integration for Documenting Inaccessible Ruins: A Case Study Approach

open access: yesDrones
Ruins, marked by decay and abandonment, present challenges for digital documentation due to their varied conditions and remote locations. Surveying inaccessible ruins demands innovative approaches for safety and accuracy.
Daniele Treccani   +2 more
doaj   +1 more source

Exploring Differences in Precision Agriculture Adoption: New and Beginning Farmers, and Established Farmers

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT This paper compares precision agriculture (PA) adoption between new and beginning farmers (NBFRs) and established farmers using data from a 2021 U.S. Midwest farmer survey. We focus on the human capital of two different groups of farmers in the PA adoption.
Whoi Cho, Oscar Sarasty, Tong Wang
wiley   +1 more source

Evaluation of the Accuracy of Photogrammetric Reconstruction of Bathymetry Using Differential GNSS Synchronized with an Underwater Camera [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Photogrammetry is a valuable tool for 3D documentation, mapping, and monitoring of underwater environments. However, the ground control surveys necessary for georeferencing and validation of the reconstructed bathymetry are difficult and time consuming ...
E. Lo   +6 more
doaj   +1 more source

UNCERTAINTY PROPAGATION FOR TERRESTRIAL MOBILE LASER SCANNER [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Laser scanners are used more and more in mobile mapping systems. They provide 3D point clouds that are used for object reconstruction and registration of the system.
C. Mezian   +3 more
doaj   +1 more source

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