Results 11 to 20 of about 2,518 (219)

Boosting the Timeliness of UAV Large Scale Mapping. Direct Georeferencing Approaches: Operational Strategies and Best Practices [PDF]

open access: yesISPRS International Journal of Geo-Information, 2020
The use of unmanned aerial vehicles (UAVs) is nowadays a standard approach in several application fields. Researches connected with these systems cover several topics and the evolution of these platforms and their applications are rapidly growing ...
Lorenzo Teppati Losè   +2 more
doaj   +4 more sources

DIRECT GEOREFERENCING OF UAV DATA BASED ON SIMPLE BUILDING STRUCTURES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Unmanned Aerial Vehicle (UAV) data acquisition is more flexible compared with the more complex traditional airborne data acquisition. This advantage puts UAV platforms in a position as an alternative acquisition method in many applications including ...
W. Tampubolon, W. Reinhardt
doaj   +4 more sources

SIMULATION MODEL FOR THE ASSESSMENT OF DIRECT AND INDIRECT GEOREFERENCING TECHNIQUES IN ANALYTICAL PHOTOGRAMMETRY

open access: yesJournal of Engineering, 2011
This paper compares between the direct and indirect georeferencing techniques in Photogrammetry bases on a simulation model. A flight plan is designed which consists of three strips with nine overlapped images for each strip by a (Canon 500D) digital ...
H. Alwan, B. Saleem, L. Khalid
doaj   +3 more sources

DIRECT GEOREFERENCING APPROACHES FOR CLOSE-RANGE AND UAV PHOTOGRAMMETRY IN THE BUILT HERITAGE DOMAIN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Direct georeferencing uses onboard sensors to measure the position and orientation of the camera during image acquisition for photogrammetric applications.
L. Teppati Losè   +2 more
doaj   +2 more sources

Accuracy Assessment of UAV Photogrammetry System with RTK Measurements for Direct Georeferencing [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The direct georeferencing accuracy of unmanned aerial vehicle (UAV) images with real-time kinematic (RTK) measurements is a concerned topic in the community of photogrammetry.
Z. Niu   +6 more
doaj   +2 more sources

Calibration and accuracy assessment in a direct georeferencing system for UAS photogrammetry [PDF]

open access: yesInternational Journal of Remote Sensing, 2018
Unmanned aerial systems (UASs) have been already proven to be useful in fields and disciplines such as agriculture, forestry, or environmental mapping, and they have also found application during natural and nuclear disasters. In many cases, the environment is inaccessible or dangerous for a human being, meaning that the widely used technique of aerial
Petr Gabrlik   +4 more
openaire   +3 more sources

Application of a direct georeferencing method of drone images for smart farming

open access: yesagricultural engineering.eu
In smart farming, information collected by autonomous devices needs to be related to its exact field location, that is, georeferenced. In this work, we study the applicability and accuracy of a simplified direct georeferencing method of drone images for
Ralph L. Stoop   +3 more
doaj   +4 more sources

IMPORTANCE OF PRECISE GRAVITY FIELD MODELING IN DIRECT GEOREFERENCING AND AERIAL PHOTOGRAMMETRY: A CASE STUDY FOR SWEDEN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
Direct georeferencing of airborne mobile mapping systems is developing with unprecedented speed using GNSS/INS integration. Removal of systematic errors is required for achieving a high accurate georeferenced product in mobile mapping platforms with ...
M. Bagherbandi   +6 more
doaj   +2 more sources

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   +2 more sources

Direct Georeferencing for Portable Mapping Systems: In the Air and on the Ground [PDF]

open access: yesJournal of Surveying Engineering, 2017
AbstractDuring the last few years, the acquisition of geometric information about objects by using a moving sensor platform has gained increasing popularity in the surveying community.
Lasse Klingbeil   +4 more
openaire   +3 more sources

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