Results 21 to 30 of about 2,580 (187)
ENRICHMENT OF UAV PHOTOGRAMMETRIC POINT CLOUD TO ENHANCE DSM IN A DENSE URBAN REGION [PDF]
Unmanned Arial Vehicle (UAV) have become very cost effective and time efficient technology for surveying, mapping and various other geospatial applications.
S. K. P. Kushwaha +4 more
doaj +1 more source
PERFORMANCE EVALUATION OF 3D MODELING SOFTWARE FOR UAV PHOTOGRAMMETRY [PDF]
UAV (Unmanned Aerial Vehicle) photogrammetry, which combines UAV and freely available internet-based 3D modeling software, is widely used as a low-cost and user-friendly photogrammetry technique in the fields such as remote sensing and geosciences.
H. Yanagi, H. Yanagi, H. Chikatsu
doaj +1 more source
THE GREAT WALL 3D DOCUMENTATION AND APPLICATION BASED ON MULTI-SOURCE DATA FUSION – A CASE STUDY OF NO.15 ENEMY TOWER OF THE NEW GUANGWU GREAT WALL [PDF]
Laser scanning or photogrammetry are useful individual techniques for digital documentation of cultural heritage sites. However, these techniques are of limited usage if cultural heritage such as the Great Wall is in harsh geographical conditions.
W. Hua, Y. Qiao, M. Hou, M. Hou, M. Hou
doaj +1 more source
UAV PHOTOGRAMMETRY: BLOCK TRIANGULATION COMPARISONS [PDF]
Abstract. UAVs systems represent a flexible technology able to collect a big amount of high resolution information, both for metric and interpretation uses. In the frame of experimental tests carried out at Dept. ICA of Politecnico di Milano to validate vector-sensor systems and to assess metric accuracies of images acquired by UAVs, a block of photos ...
GINI, ROSSANA +5 more
openaire +5 more sources
Editorial for Special Issue “UAV Photogrammetry and Remote Sensing” [PDF]
The concept of Remote Sensing as a way of capturing information from an object without making contact with it has, until recently, been exclusively focused on the use of earth observation satellites [...]
Fernando Carvajal-Ramírez +2 more
openaire +3 more sources
UAV-based photogrammetry: monitoring of a building zone [PDF]
Abstract. The use of small-size unmanned aerial vehicles (UAV) for civil applications in many different fields such as archaeology, disaster monitoring, aerial surveying or mapping has significantly increased in recent years. The high flexibility and the low cost per acquired information compared to classical systems – terrestrial or aerial – offer a ...
J. Unger, M. Reich, C. Heipke
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Three-dimensional digital technology is important in the maintenance and monitoring of cultural heritage sites. This study focuses on using a combination of terrestrial laser scanning and unmanned aerial vehicle (UAV) photogrammetry to establish a three ...
Young Hoon Jo, Seonghyuk Hong
doaj +1 more source
Estimating the Rut Depth by UAV Photogrammetry
The rut formation during forest operations is an undesirable phenomenon. A methodology is being proposed to measure the rut depth distribution of a logging site by photogrammetric point clouds produced by unmanned aerial vehicles (UAV). The methodology includes five processing steps that aim at reducing the noise from the surrounding trees and ...
Paavo Nevalainen +7 more
openaire +3 more sources
EVALUATION OF THE QUALITY OF ACTION CAMERAS WITH WIDE-ANGLE LENSES IN UAV PHOTOGRAMMETRY [PDF]
The application of light-weight cameras in UAV photogrammetry is required due to restrictions in payload. In general, consumer cameras with normal lens type are applied to a UAV system.
H. Hastedt, T. Ekkel, T. Luhmann
doaj +1 more source
Comparative analysis of Road Scanning Techniques
A three-dimensional road point cloud is not only useful for civil engineers (road rehabilitation, road condition assessment) but can also be useful for vehicle engineers (autonomous vehicle driving scenario, vehicle dynamics simulation).
Mohammad DOWAJY +4 more
doaj +1 more source

