Results 1 to 10 of about 255,255 (303)

A Method of Optimizing Terrain Rendering Using Digital Terrain Analysis [PDF]

open access: yesISPRS International Journal of Geo-Information, 2021
Terrain rendering is an important issue in Geographic Information Systems and other fields. During large-scale, real-time terrain rendering, complex terrain structure and an increasing amount of data decrease the smoothness of terrain rendering. Existing rendering methods rarely use the features of terrain to optimize terrain rendering.
Zhang, Lei   +4 more
openaire   +3 more sources

INTERACTIVE DIGITAL TERRAIN MODEL ANALYSIS IN ATTRIBUTE SPACE [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
Abstract. The use of high-resolution digital terrain model derived from airborne LiDAR system becomes more and more prevalent. Effective multi-scale structure characterization is of crucial importance for various domains such as geosciences, archaeology and Earth observation. This paper deals with structure detection in large datasets with little or no
Guiotte, Florent   +3 more
openaire   +4 more sources

Leading Progress in Digital Terrain Analysis and Modeling [PDF]

open access: yesISPRS International Journal of Geo-Information, 2019
Digital Terrain analysis (DTA) and modeling has been a flourishing interdisciplinary field for decades, with applications in hydrology, geomorphology, soil science, engineering projects and computer sciences. Currently, DTA is characterized by a proliferation of multispectral data from new sensors and platforms, driven by regional and national ...
Giulia Sofia   +3 more
openaire   +3 more sources

A Data Partitioning Method for Parallel Digital Terrain Analysis [PDF]

open access: yesJournal of Algorithms & Computational Technology, 2015
Parallel computing of the intensive data is one of the effective methods to improve high-performance computation of massive data. The purpose of this paper is to study the method of data partitioning and scheduling which is geared to the strategy of parallel computation facing to the distribution of data in sequence.
Wanfeng Dou, Yan Li, Shoushuai Miao
openaire   +2 more sources

GIS-Based Digital Terrain Analysis of Assam-Meghalaya Foothills in Kamrup District, Assam [PDF]

open access: yesNature Environment and Pollution Technology, 2021
Terrain characteristics and their evaluation usually come under geomorphological study and more particularly the applied geomorphological study (Prasad & Sarkar 2011).
C. Borpujari and A. K. Bora
doaj   +1 more source

An Integrated Algorithm for Extracting Terrain Feature-Point Clusters Based on DEM Data

open access: yesRemote Sensing, 2022
Terrain feature points, such as the peaks and saddles, are the basic framework of surface topography and its undulations, which significantly affect the spatial distribution of surface topography.
Jinlong Hu   +4 more
doaj   +1 more source

Quantitative and Qualitative Terrain Analysis Based on Digital Terrain Model

open access: yesIOP Conference Series: Earth and Environmental Science, 2021
Abstract Within the Digital Terrain Models (DTM) processing and consequently qualitative and quantitative analysis, it is possible to gain a credible imagination of real terrain shape. In order to obtain an appropriate DTM, it is necessary to decrease the influence of the gross errors that have negative effects on the final DTM.
Dana Sitanyiova   +3 more
openaire   +1 more source

Avalanche risk analysis using airborne LiDAR data [PDF]

open access: yesINCAS Bulletin, 2022
Natural and man-made disasters are a justified concern causing life-threats damages, affects existing budgets or disrupts national economic and social development plans.
Georgiana GRIGORAS   +3 more
doaj   +1 more source

Geological applications of digital terrain analysis

open access: yesInternational Journal of Geographical Information Science, 2013
Terrain analysis (Way 1978) includes segmentation (the terrain partition framework), pattern recognition (objects classification and mapping) and decision making for site evaluation, site selection...
Carlos Grohmann, George Miliaresis
openaire   +4 more sources

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

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