Results 1 to 10 of about 24,119 (299)

Method for Measuring the Information Content of Terrain from Digital Elevation Models

open access: yesEntropy, 2015
As digital terrain models are indispensable for visualizing and modeling geographic processes, terrain information content is useful for terrain generalization and representation.
Lujin Hu   +3 more
doaj   +4 more sources

Surface network extraction from high resolution digital terrain models

open access: yesJournal of Spatial Information Science, 2021
A surface network is a topological data structure formed by a set of thalwegs and ridges on a digital terrain model. Its computation relies on the detection of saddles on the terrain.
Eric Guilbert
doaj   +5 more sources

ANADEM: A Digital Terrain Model for South America

open access: yesRemote Sensing
Digital elevation models (DEMs) have a wide range of applications and play a crucial role in many studies. Numerous public DEMs, frequently acquired using radar and optical satellite imagery, are currently available; however, DEM datasets tend to exhibit
Leonardo Laipelt   +5 more
doaj   +2 more sources

Creation of digital terrain models using software applications [PDF]

open access: yesE3S Web of Conferences, 2021
The article discusses the construction of a digital terrain model in various programs, which will be used for the vertical planning design. One of the major challenges in this area is the creation of an accurate and realistic surface, which will give an ...
Germak Oksana   +2 more
doaj   +1 more source

Methodology for urbanized watersheds parameters ascertainment [PDF]

open access: yesE3S Web of Conferences, 2023
The paper presents elaborated methodology for Saint Petersburg and its outskirts watersheds parameters ascertainment. The methodology is based on usage of the digital terrain model, which was created as result of topographic maps digitalization. Usage of
Klubov Stepan   +4 more
doaj   +1 more source

COMPARISON OF DIGITAL TERRAIN MODELS FROM TWO PHOTOCLINOMETRY METHODS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
We evaluate the horizontal resolution and vertical precision for digital topographic models (DTMs) of the Moon derived from image radiance information, a process known as photoclinometry (PC) or shape-from-shading (SfS). We use the implementations in two
R. L. Kirk   +6 more
doaj   +1 more source

New high-fidelity terrain modeling method constrained by terrain semanteme. [PDF]

open access: yesPLoS ONE, 2018
Production of higher-fidelity digital elevation models is important; as such models are indispensable components of space data infrastructure. However, loss of terrain features is a constant problem for grid digital elevation models, although these ...
Bo Zhou   +3 more
doaj   +1 more source

Comparison оf Digital Relief Models

open access: yesНаука. Инновации. Технологии, 2023
Introduction. GIS technologies make it possible to analyze large amounts of spatial data, which include digital elevation models derived from remote sensing data.
S. A. Antonov, S. V. Peregudov
doaj   +1 more source

A Review of Digital Terrain Modeling [PDF]

open access: yesComputer Graphics Forum, 2019
AbstractTerrains are a crucial component of three‐dimensional scenes and are present in many Computer Graphics applications. Terrain modeling methods focus on capturing landforms in all their intricate detail, including eroded valleys arising from the interplay of varied phenomena, dendritic mountain ranges, and complex river networks. Set against this
Galin, Eric   +6 more
openaire   +3 more sources

Revealing Active Mars with HiRISE Digital Terrain Models

open access: yesRemote Sensing, 2022
Many discoveries of active surface processes on Mars have been made due to the availability of repeat high-resolution images from the High Resolution Imaging Science Experiment (HiRISE) onboard the Mars Reconnaissance Orbiter.
Sarah S. Sutton   +15 more
doaj   +1 more source

Home - About - Disclaimer - Privacy