Results 1 to 10 of about 60,002 (245)

MORPHOLOGICAL FILLING OF DIGITAL ELEVATION MODELS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
In this paper a new approach for a more detailed post processing and filling of digital elevation models (DEMs) in urban areas is presented. To reach the required specifications in a first step the errors in digital surface models (DSMs) generated by ...
T. Krauß, P. d'Angelo
doaj   +4 more sources

Digital Elevation Models: Terminology and Definitions [PDF]

open access: yesRemote Sensing, 2021
Digital elevation models (DEMs) provide fundamental depictions of the three-dimensional shape of the Earth’s surface and are useful to a wide range of disciplines.
Peter L. Guth   +13 more
doaj   +5 more sources

SUBAQUATIC DIGITAL ELEVATION MODELS FROM UAV-IMAGERY [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The paper presents an approach for the generation of digital elevation models (DEMs) of underwater areas from aerial images. Standard software-products do not provide the possibility to measure correctly through refractive interfaces, such as water ...
C. Mulsow   +4 more
doaj   +1 more source

Artificial intelligence-based software (AID-FOREST) for tree detection: A new framework for fast and accurate forest inventorying using LiDAR point clouds

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
Forest inventories are essential to accurately estimate different dendrometric and forest stand parameters. However, classical forest inventories are time consuming, slow to conduct, sometimes inaccurate and costly.
F.R. López Serrano   +11 more
doaj   +1 more source

Digital elevation models of TanDEM-X mission [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
Started in 2010 TanDEM-X mission (TerraSAR-X add-on for Digital Elevation Measurement) is the first spaceborne radar interferometer mission that acquires interferometric data in bistatic InSAR stripmap mode with two spacecrafts TerraSAR-X (TSTSX) and ...
Małgorzata Woroszkiewicz
doaj   +1 more source

Comparative analysis for methods of building digital elevation models from topographic maps using geoinformation technologies

open access: yesGeodesy and Cartography, 2021
The article considers the question of estimating the accuracy of interpolation methods for building digital elevation models using Soviet topographic maps. The territory of the Kursk region of the Russian Federation was used as the study area, because it
Vadim Belenok   +5 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

Non-affine georectification to improve the topographic fidelity of legacy geologic maps

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2022
Field-based geologic maps, which are among the most valuable tools of communication among geoscientists, can be expensive and time-consuming to produce or manually revise.
Yichuan Zhu   +2 more
doaj   +1 more source

Creating HiRISE digital elevation models for Mars using the open-source Ames Stereo Pipeline [PDF]

open access: yesGeoscientific Instrumentation, Methods and Data Systems, 2019
The present availability of sub-decametre digital elevation models on Mars – crucial for the study of surface processes – is scarce. In contrast to low-resolution global datasets, such models enable the study of landforms <10 km in size, which ...
A. J. Hepburn   +4 more
doaj   +1 more source

Identifying Land Subsidence Using Global Digital Elevation Models

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
Recent developments in space-based surveying methods of the Earth's topography, including the differential interferometric synthetic aperture radar (DInSAR), have increased the availability of options for monitoring land subsidence.
Kazimierz Becek   +6 more
doaj   +1 more source

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