Results 51 to 60 of about 483,530 (161)

Machine Learning-Based Air-to-Ground Channel Model Selection Method for UAV Communications Using Digital Surface Model Data. [PDF]

Sensors (Basel), 2022
Kang YE, Jung YH.
europepmc   +1 more source

Using Unmanned Aerial Vehicles (UAV) for High-Resolution Reconstruction of Topography: The Structure from Motion Approach on Coastal Environments

Remote Sensing, 2013
The availability of high-resolution Digital Surface Models of coastal environments is of increasing interest for scientists involved in the study of the coastal system processes. Among the range of terrestrial and aerial methods available to produce such
Francesco Mancini, Marco Dubbini, Mario Gattelli, Francesco Stecchi, Stefano Fabbri, Giovanni Gabbianelli   +5 more
doaj   +1 more source

Building Change Detection from Historical Aerial Photographs Using Dense Image Matching and Object-Based Image Analysis

Remote Sensing, 2014
A successful application of dense image matching algorithms to historical aerial photographs would offer a great potential for detailed reconstructions of historical landscapes in three dimensions, allowing for the efficient monitoring of various ...
Stephan Nebiker, Natalie Lack, Marianne Deuber   +2 more
doaj   +1 more source

Effect of DEM Used for Terrain Correction on Forest Windthrow Detection Using COSMO SkyMed Data

Remote Sensing
Preprocessing Synthetic Aperture Radar (SAR) data is a crucial initial stage in leveraging SAR data for remote sensing applications. Terrain correction, both radiometric and geometric, and the detection of layover/shadow areas hold significant importance
Michele Dalponte, Daniele Marinelli, Yady Tatiana Solano-Correa   +2 more
doaj   +1 more source

Digital Modeling Phenomenon Of Surface Ground Movement

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture, 2016
With the development of specialized software applications it was possible to approach and resolve complex problems concerning automating and process optimization for which are being used field data. Computerized representation of the shape and dimensions of the Earth requires a detailed mathematical modeling, known as "digital terrain model". The paper
Ioan Voina, Maricel Palamariu, Iohan Neuner, Tudor Salagean, Dumitru Onose, Mircea Ortelecan, Anca Maria Moscovici, Mariana Calin   +7 more
openaire   +3 more sources

Unregulated Vertical Urban Growth Alters Microclimate: Coupling Building-Scale Digital Surface Models with High-Resolution Microclimate Simulations

Smart Cities
Rio de Janeiro’s favelas house over 20% of the city’s population in just 5% of its territory, with Rio das Pedras emerging as a critical case study: ranking as Brazil’s fifth most populous favela and its most vertically intensified. This study quantifies
Jonatas Goulart Marinho Falcão, Luiz Felipe de Almeida Furtado, Gisele Silva Barbosa, Luiz Carlos Teixeira Coelho   +3 more
doaj   +1 more source

Geostatistical Vegetation Filtering for Rapid UAV-RGB Mapping of Sudden Geomorphological Events in the Mediterranean Areas

Drones
The use of UAVs for analyzing soil degradation processes, particularly erosion, has become a crucial tool in environmental monitoring. However, the use of LiDAR (Light Detection and Ranging) or TLS (Terrestrial Lasser Scanner) may not be affordable for ...
María Teresa González-Moreno, Jesús Rodrigo-Comino   +1 more
doaj   +1 more source

Generation of digital terrain models from digital surface models using a watershed transformation approach [PDF]

Eleventh International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2025)
The basis of Urban Digital Twins are 3D city models generated from airborne or spaceborne remote sensing imagery. These remote sensing data allows the extraction of digital surface models (DSMs) representing the absolute geographical height of each pixel together with orthorectified image mosaics.
openaire   +2 more sources

Assessing Digital Surface Models by Verifying Shadows

, 2009
We propose to use wireless sensor networks to assess the accuracy and application of Digital Surface Models (DSM) for the study of shadowing and solar radiation over the built environment. Using the ability of sensor network data to provide information about solar radiation and predicting the exact time of the day that the Sun starts radiating a sensor,
Carneiro, C., Karzand, M., Golay, F., Lu, Y., Vetterli, M.   +4 more
openaire   +2 more sources

Justification of UAV-based aerial survey parameters for geodetic support of open-pit mining

Технічна інженерія
The article investigates the justification of aerial survey parameters using unmanned aerial vehicles (UAVs) for geodetic support of mining operations in open-pit conditions.
V.V. Kotenko, M.S. Kunytska, O.A. Yanovych, I.A. Piskun   +3 more
doaj   +1 more source