Results 41 to 50 of about 1,960 (165)

Image-based techniques for the survey of mosaics in the St Mark's Basilica in Venice

open access: yesVirtual Archaeology Review, 2018
This article aims to critically examine the entire methodology of very large scale (1:1) surveying and documentation of mosaic surfaces. The term ‘survey’ should be read in its broadest and most complete and sense, including the phases of measurement and
Andrea Adami   +3 more
doaj   +1 more source

A Review of True Orthophoto Rectification Algorithms

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract Orthophoto is one of the most important basic geographic information products. Because traditional orthophotos use incomplete surface information for digital differential rectification, there is mutual occlusion between images, which is difficult to meet the current large-scale urban mapping requirements.
Tingting Li   +4 more
openaire   +1 more source

Research on River-lake Demarcation Technology Fusing Radar Point Cloud andOrthophoto

open access: yesRenmin Zhujiang, 2020
In the demarcation of rivers, lakes and water conservancy projects, whenthe airborne lidar point cloud data is used alone to automatically filter andclassify, low vegetation points are easily misclassified and misjudged as groundpoints,affected by the ...
XIA Zuwei, RONG Lihui
doaj  

Thermal Infrared Orthophoto Geometry Correction Using RGB Orthophoto for Unmanned Aerial Vehicle

open access: yesAerospace
The geometric correction of thermal infrared (TIR) orthophotos generated by unmanned aerial vehicles (UAVs) presents significant challenges due to low resolution and the difficulty of identifying ground control points (GCPs). This study addresses the limitations of real-time kinematic (RTK) UAV data acquisition, such as network instability and the ...
Kirim Lee, Wonhee Lee
openaire   +2 more sources

The use of kinematic photogrammetry and LiDAR for reconstruction of a unique object with extreme topography: a case study of Dutchman’s Cap, Baltic seacoast, Lithuania

open access: yesFrontiers in Remote Sensing
Nowadays, the development of Unmanned Aerial Vehicle in conjunction with Photogrammetry and LiDAR technologies, has revolutionized the collection of geospatial data. These technologies enable the acquisition of very high-resolution images and dense point
Birutė Ruzgienė   +9 more
doaj   +1 more source

Digital Airborne Photogrammetry—A New Tool for Quantitative Remote Sensing?—A State-of-the-Art Review On Radiometric Aspects of Digital Photogrammetric Images

open access: yesRemote Sensing, 2009
The transition from film imaging to digital imaging in photogrammetric data capture is opening interesting possibilities for photogrammetric processes. A great advantage of digital sensors is their radiometric potential.
Nikolaj Veje   +13 more
doaj   +1 more source

Monitoring of Glacier Surfaces with Photogrammetry, a Case Study of the Triglav Glacier

open access: yesActa Geographica Slovenica, 2000
The relatively rapid changes of the shape and volume of glaciers that have been recorded in the last few decades can be monitored and recorded in different ways.
Mihaela Triglav   +2 more
doaj   +1 more source

Changes in woodland cover in the Karviná district from the second half of the 18th century to the beginning of the 21st century

open access: yesEkológia (Bratislava), 2018
This study analyses the changes in woodland cover from the mid-18th century to the turn of the 21st century in a distinctive region of the Czech Republic – the Karviná district.
Popelková Renata
doaj   +1 more source

Optimisation par drone du levé photographique des occupations stratifiées de l’Antiquité et du Moyen Âge sur la commune de Saint-Chéron – Essonne

open access: yesArchéopages, 2014
Excavations in advance of development conducted in 2013 in Saint-Chéron (Essonne) have provided the opportunity to study a road and its surroundings from the Gallo-Roman to the early modern periods.
Vincent Goustard
doaj   +1 more source

Algorithm for image-based architectural element recognition [PDF]

open access: yesFME Transactions, 2019
This research describes an image-based algorithm for a shape recognition of an architectural element from an image. Given an orthophoto of a particular element such as a window, and a query image of the object facade, the algorithm estimates the level of
Đurić Isidora   +6 more
doaj  

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