Results 11 to 20 of about 48,254,805 (247)

Digital terrain model height estimation using support vector machine regression [PDF]

South African Journal of Science, 2015
Digital terrain model interpolation is intrinsically a surface fitting problem, in which unknown heights H are estimated from known X-Y coordinates.
Onuwa Okwuashi, Christopher Ndehedehe
doaj   +2 more sources

ANADEM: A Digital Terrain Model for South America

Remote 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, Bruno Comini de Andrade, Walter Collischonn, Alexandre de Amorim Teixeira, Rodrigo Cauduro Dias de Paiva, Anderson Ruhoff   +5 more
doaj   +2 more sources

Design of data structures for terrain reference navigation [PDF]

, 1994
This thesis describes the design of a data structure for use with Digitised Terrain Elevation Data (DTED) in Terrain Reference Navigation (TRN) systems.
Gia, M. C.
core   +7 more sources

Spatial scale analysis of landscape processes for digital soil mapping in Ireland [PDF]

, 2013
Soil is one of the most precious resources on Earth because of its role in storing and recycling water and nutrients essential for life, providing a variety of ecosystem services.
Cavazzi, Stefano
core   +7 more sources

Statistically Robust Detection and Evaluation of Errors in DTMs [PDF]

, 2011
Digital Terrain Models (DTMs) have been an important topic in the study of ground surface landform, therefore precise evaluation of errors in DTMs production is a critical factor to assess the quality of DTM. In this paper the attribute of errors in DTMs
Uwe Stilla, Saati, Amirreza, Arefi, Hossein, Stilla, Uwe, Michael, Schmidt, Hossein Arefi, Amirreza Saati, Michael Schmitt   +7 more
core   +1 more source

The study of local terrain modeling methods for vertical planning of the territory [PDF]

Geodesy and Cartography, 2021
This work aims to study the vertical planning method for the terrain area as part of the process of construction geodetic support. Such planning will be carried out based on the aerial survey data from UAVs, which allow the creation of a high-quality ...
Ihor Trevoho, Apollinariy Ostrovskiy, Ihor Kolb, Olena Ostrovska, Viacheslav Zhyvchuk   +4 more
doaj   +1 more source

Research on colorized physical terrain modeling for intelligent vehicle navigation

Advances in Mechanical Engineering, 2018
Colorized physical terrain models are needed in many applications, such as intelligent navigation, military strategy planning, landscape architecting, and land-use planning.
Jingbin Hao, Hansong Ji, Hao Liu, Zhongkai Li, Haifeng Yang   +4 more
doaj   +1 more source

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

Entropy, 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, Zongyi He, Jiping Liu, Chunhua Zheng   +3 more
doaj   +1 more source

Optimization of UAV Flight Missions in Steep Terrain

Remote Sensing, 2020
Unmanned aerial vehicle (UAV) photogrammetry is one of the most effective methods for capturing a terrain in smaller areas. Capturing a steep terrain is more complex than capturing a flat terrain.
Klemen Kozmus Trajkovski, Dejan Grigillo, Dušan Petrovič   +2 more
doaj   +1 more source

Application of Digital Terrain Model to volcanology

Annals of Geophysics, 2006
Three-dimensional reconstruction of the ground surface (Digital Terrain Model, DTM), derived by airborne GPS photogrammetric surveys, is a powerful tool for implementing morphological analysis in remote areas.
V. Achilli, R. Monticelli, M. Marsella, M. Fabris, P. Baldi   +4 more
doaj   +1 more source