Results 31 to 40 of about 2,991,442 (236)

Influence of Flight Height and Image Sensor on the Quality of the UAS Orthophotos for Cadastral Survey Purposes

open access: yesLand, 2022
The possibility of using unmanned aircraft systems (UAS) for cadastral survey purposes was investigated in this research. A study site consisting of 26 ground control points (GCP) and checkpoints (CP) was established. The study site was first measured by
Hrvoje Sertić   +3 more
doaj   +1 more source

QUALITY ASPECTS OF TRUE ORTHOPHOTO IN URBAN AREAS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Orthophotos are one of the most popular photogrammetric products and have been a leading source of up-to-date 2D data of urban areas for years. In the last few years, together with innovations in the area of Dense Image Matching, Digital Surface Models ...
W. Ostrowski   +3 more
doaj   +1 more source

TRANSFER OF TECHNOLOGY FOR CADASTRAL MAPPING IN TAJIKISTAN USING HIGH RESOLUTION SATELLITE DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
European Commission funded project entitled: "Support to the mapping and certification capacity of the Agency of Land Management, Geodesy and Cartography" in Tajikistan was run by FINNMAP FM-International and Human Dynamics from Nov.
R. Kaczynski, R. Kaczynski
doaj   +1 more source

A dataset of the UAV remote sensing spatial distribution of Spartina alterniflora in the Zhangjiang Estuary of Fujian Province from 2013 to 2022

open access: yes中国科学数据, 2023
The invasion of exotic Spartina alterniflora into Chinese coastal wetlands poses a threat to biodiversity and ecosystem functions. Thus monitoring the spatio-temporal distribution of the invasion is important for the conservation/restoration and ...
HUANG Minmin   +3 more
doaj   +1 more source

Occlusion-free Orthophoto Generation for Building Roofs Using UAV Photogrammetric Reconstruction and Digital Twin Data

open access: yesProceedings of the 40th International Symposium on Automation and Robotics in Construction, 2023
- Building roofs are a primary barrier of the building fabric to protect building interiors and their occupants from the effects of the weather. Effectively monitoring their condition and maintaining them is thus critical, and even more so in light of ...
Jiajun Li   +3 more
semanticscholar   +1 more source

Evaluating the Geometric Accuracy of Large Scale Digital Orthophotos Produced from Aerial Photography

open access: yesInternational Journal of Environment and Geoinformatics, 2020
This paper aims to assess the geometric accuracy of large-scale digital orthophoto produced from aerial photography in the project area. Since accuracy assessment of digital orthophotos is a complicated issue some main factors and parameters that affect
Ozan Arslan, Pınar Yılmaz
doaj   +1 more source

DIGITAL ORTHOPHOTO

open access: yesAGG+, 2017
<p>A digital orthophoto map is an orthorectified photo mosaic that is a basis for a successful mapping. A digital orthophoto map is one of the basic products of today’s photogrammetry and it represents its well-known and used product, and it was created based on the map users' wish to unite the detail and ...
Miodrag Regodić   +2 more
openaire   +2 more sources

Creation of Topographic Maps for the Nuclear Power Plant Construction Site based on Remote Sensing Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
This article focuses on carrying out design work using digital orthophoto maps and digital elevation models (DEM). Creating orthophoto maps and DEMs based on remote sensing data is one of the most relevant issues in current geospatial analysis.
S. Sayyidqosimov   +4 more
doaj   +1 more source

THE EFFECT OF PIXEL SIZE ON THE ACCURACY OF ORTHOPHOTO PRODUCTION [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
In our country, orthophoto products are used by the public and private sectors for engineering services and infrastructure projects, Orthophotos are particularly preferred due to faster and are more economical production according to vector digital ...
S. Kulur   +3 more
doaj   +1 more source

Accuracy of points of cartographic projection of orthophotos obtained with Remotely Piloted Aircraft (RPA)

open access: yesGeografares, 2022
This study evaluated three orthophotos, generated from aerial surveys configured at 80 m, 100 m and 120 m in height with multirotor RPA, model Phantom 4 Pro from the company DJI coupled to Complementary Metal Oxide Semiconductor (CMOS) sensor of 1 inch ...
Agostinho Prado Alves Junior   +1 more
doaj   +1 more source

Home - About - Disclaimer - Privacy