Results 81 to 90 of about 20,471 (284)

Analisi della componente 3D nell'applicazione di vincoli urbanistici

GEOmedia, 2015
Some planning restrictions affecting mainly the altitude component of the buildings. In the context of Comune di Bergamo, using GIS spatial analyst tools and accurate elevation data, were studied innovative methods of analysis in the field of landscape ...
Andrea Maffeis, Andrea Caldiroli
doaj  

Evaluation of selected methods for extracting digital terrain models from satellite born digital surface models in urban areas

, 2011
For the generation of 3D city models from satellite stereo imagery beyond the generation of digital surface models (DSM) from stereo data the next crucial step is the separation of urban 3D objects from ground.
Arefi, Hossein, Reinartz, Peter, Krauß, Thomas   +2 more
core  

Hyperspectral species maps and LiDAR‐based structured population models show future forest fire frequency may compromise forest resilience

Remote Sensing in Ecology and Conservation, EarlyView.
Monitoring forest recovery from disturbances at scale requires tracking tree dynamics, yet traditional ground‐based approaches are resource‐intensive. We present a pipeline to parameterize integral projection models (IPMs) using LiDAR data and hyperspectral‐based species maps to assess post‐fire recovery across large, forested areas at the Caribou ...
Jessica McLean, Tommaso Jucker, Alice Rosen, Sean M. McMahon, Roberto Salguero‐Gómez   +4 more
wiley   +1 more source

Strumenti, tecniche e soluzioni Open Source a confronto per l’elaborazione fotogrammetrica delle immagini digitali in ambito archeologico

Archeomatica, 2019
This work wants to be an overview about the various “open source” software that can be used to obtain rendering and photogrammetric data geo-referenced from digital photos. In fact, all the phases of digital photogrammetric processing can be performed by
Roberto Montagnetti, Pier Paolo Chiraz, Andrea Ricci, David Gerald Pickel   +3 more
doaj  

Geodetic surveying and creation of a map of the obstacles of the future airport Golubić - Bihać [PDF]

Tehnika
In the area of the planned airport Golubić - Bihać, a geodetic survey and creation of a map of obstacles was carried out with the aim of detailed detection of potential dangers in the airspace. Airborne laser scanning technology (LiDAR) was used for data
Popović Jovana N., Tucićešić Sanja S., Đukanović Tanja B.   +2 more
doaj   +1 more source

Effect of photogrammetric RPAS flight parameters on plani-altimetric accuracy of DTM

Open Geosciences, 2020
Remotely piloted aerial systems (RPASs) are gaining fast and wide application around the world due to its relative low-cost advantage in the acquisition of high-resolution imagery.
Mora-Felix Zuriel Dathan, Sanhouse-Garcia Antonio Jesus, Bustos-Terrones Yaneth A., Loaiza Juan G., Monjardin-Armenta Sergio Alberto, Rangel-Peraza Jesus Gabriel   +5 more
doaj   +1 more source

DTMsim - DTM channel simulation in ns

, 2001
Dynamic Transfer Mode (DTM) is a ring based MAN technology that provides a channel abstraction with a dynamically adjustable capacity. TCP is a reliable end to end transport protocol capable of adjusting its rate.
Marsh, Ian, Abrahamsson, Henrik
core  

Classification of tree species and standing dead trees in Boreal forests using UAV‐based RGB, multispectral, and LiDAR point clouds

Remote Sensing in Ecology and Conservation, EarlyView.
We evaluated single‐ and multi‐sensor UAV approaches for classifying tree species and standing dead trees in boreal forests, focusing on key biodiversity indicators such as European aspen. Using spectral and structural features extracted from RGB, multispectral (MSP), and LiDAR point clouds for 1,205 field‐measured trees, we compared classification ...
Anton Kuzmin, Lauri Korhonen, Topi Tanhuanpää, Mikko Kukkonen, Matti Maltamo, Timo Kumpula   +5 more
wiley   +1 more source

Using Airborne Laser Scanning and Sentinel‐2 to Understand Subcanopy Light Regimes and Understory Diversity of Vascular Plants in Temperate Mountain Forests

Remote Sensing in Ecology and Conservation, EarlyView.
This study demonstrates that not just Airborne Laser Scanning, but also Sentinel‐2 can effectively estimate absolute canopy cover and canopy cover heterogeneity ‐ structural metrics that determine the subcanopy light regime, found to be linked to the vascular plant species richness in the understory of temperate mountain forests.
Felix Wieland‐Glasmann, Cornelius Senf, Kristin H. Braziunas, Rupert Seidl, Peter Annighöfer   +4 more
wiley   +1 more source

DTMs for terrain evaluation

Geocarto International, 1992
Abstract Many physical processes operating in the landscape are locally dependent on landscape geometry. The decription of surface geometry contained in a digital terrain model (DTM) offers the opportunity to objectively evaluate these processes using computer technology.
J.R. Dymond, R.C. DeRose, C.M. Trotter
openaire   +1 more source