Results 11 to 20 of about 651,698 (156)

Adequacy of pseudo-direct georeferencing of terrestrial laser scanning data for coastal landscape surveying against indirect georeferencing [PDF]

open access: yesEuropean Journal of Remote Sensing, 2017
The georeferencing process is crucial to the accuracy of terrestrial laser scanner (TLS) data, in particular in the context of diachronic studies relying on multi-temporal surveys.
Nicolas le Dantec   +2 more
exaly   +6 more sources

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

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 of Stationary LiDAR

open access: yesRemote Sensing, 2009
Unlike mobile survey systems, stationary survey systems are given very little direct georeferencing attention. Direct Georeferencing is currently being used in several mobile applications, especially in terrestrial and airborne LiDAR systems ...
Ahmed Mohamed, Benjamin Wilkinson
exaly   +4 more sources

Georeferencing experiments with UAS imagery [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2014
Comparing typical airborne mapping systems with Unmanned Airborne Systems (UAS) developed for mapping purposes, there are several advantages and disadvantages of both systems.
G. Jóźków, C. Toth
doaj   +2 more sources

Improving Linear Projects Georeferencing to Create Digital Models Using UAV Imagery [PDF]

open access: yesE3S Web of Conferences, 2021
Global Positioning System (GPS) on Unmanned Aerial Vehicles (UAV) platform relies on Micro Electro Mechanical Systems (MEMS) technology with a precision of 10 m at shooting time at UAV camera stations positions.
Elsheshtawy Amr M., Gavrilova Larisa A.
doaj   +2 more sources

Indirect UAV Strip Georeferencing by On-Board GNSS Data under Poor Satellite Coverage [PDF]

open access: yesRemote Sensing, 2019
The so-called Real Time Kinematic (RTK) option, which allows one to determine with cm-level accuracy the Unmanned Aerial Vehicles (UAV) camera position at shooting time, is also being made available on medium- or low-cost drones.
Gianfranco Forlani   +3 more
doaj   +5 more sources

GEOREFERENCING ACCURACY ANALYSIS OF A SINGLE WORLDVIEW-3 IMAGE COLLECTED OVER MILAN [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
The use of rational functions has become a standard for very high-resolution satellite imagery (VHRSI). On the other hand, the overall geolocalization accuracy via direct georeferencing from on board navigation components is much worse than image ground ...
L. Barazzetti   +3 more
doaj   +3 more sources

ANALYZING OF THE TERRESTRIAL LASER SCANNER GEOREFERENCING USING GNSS

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ, 2018
Recent years have witnessed emerging the cutting-edge method for point cloud creation using terrestrial laser scanner (TLS). The TLS manufacturers declare accuracies of their instruments up to the millimeter level.
Hasan A. Jaafar
doaj   +2 more sources

Comparison of Direct and Indirect Georeferencing Methods Using Satellite Linear Array Iimages [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2015
Comparison of direct and indirect methods for georeferencing of satellite linear array stereo images is proposed in this paper. In direct method, collinear condition and orbital elements are used for geolocation of pixels and ground control points (GCPs)
Ahmad Izadipour   +3 more
doaj   +1 more source

Serum geoepidemiology of leprosy biomarkers in a city-wide COVID-19 survey in Brazil [PDF]

open access: yesBMC Infectious Diseases
Background COVID-19 has created a significant global health emergency and triggered numerous seroepidemiological field tracing initiatives. The use of these samples becomes a timely tool for intensifying active case finding and early diagnosis of leprosy.
Filipe Rocha Lima   +9 more
doaj   +2 more sources

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