digital terrain data model
Digital Terrain Model Data Structures
... This paper describes pertinent digital terrain model data structures, namely, grid/raster, quadtree, and triangular irregular network.. A basic concept of DIM data structure is [r] ...
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Digital terrain illustration
... of digital terrain illustration consists of two main modules which are height Mapping and Sketching ...3D terrain model from a 2D data ...
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Adaptive Slope Filtering of Airborne LiDAR Data in Urban Areas for Digital Terrain Model (DTM) Generation
... My interest is in efficient, automatic generation of 3D models in dense urban areas from airborne LiDAR for civil engineering applications, for example, earthquake damage assessment. In such applications, 3D models ...
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ABSTRACT : Digital terrain model (DTM) represents a very important geospatial data type. In the Czech Republic, the
... ABSTRACT: Digital terrain model (DTM) represents a very important geospatial data ...common digital contour data sources are the Primary Geographic Data Base (ZABAGED), ...
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Accuracy of digital terrain model and its application in forestry
... BrnO). Data poskytuje FAST VUT v Brně volně ke stažení na webových stránkách ...využita data z trigonomet- rických bodů na území ŠLP Křtiny podle internetové databáze trigonometrických a zhušťovacích bodů ...
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Rendering process of digital terrain model on mobile devices
... represent terrain based on quad-tree. Terrain is divided into regular tiles and represented by hierarchical quad-tree data ...to terrain where fluctuate area is refined and even area is ...
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Effects of Structure from Motion Data Density, Interpolation Method and Grid Size on Micro Topography Digital Terrain Model Accuracy
... for data storage, data processing and manipulation of large volumes of ...of data acquisition and data computation ...in data acquisition and processing costs by a balance between ...
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A new method for determination of most likely landslide initiation points and the evaluation of digital terrain model scale in terrain stability mapping
... topographic data and is lim- ited by the underlying assumptions used in the models, which cannot account for many factors which are known to in- fluence landslide hazard, such as mechanically weak rocks, springs, ...
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A New Algorithm for Void Filling in a DSM from Stereo Satellite Images in Urban Areas
... the digital surface ...of terrain correction methods for refining digital elevation model in mountainous ...in digital surface models many researchers have analysed and evaluated ...
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Simulation of the Indonesian land gravity data using a digital terrain model data
... GTOPO30 data for further ...GTOPO30 data, the histogram of the differences between them was de- rived and is shown in ...GTOPO30 data source, as mentioned in Sec- tion 2, and more homogeneous ...
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The Key Technology of Realistic Terrain Construction
... a terrain with realistic ...large terrain construction using Virtual Planet Builder (VPB), we acquire digital evaluation data and geospatial imagery data, and make large scale ...
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GeometricCorrection o f A i r b o r n e R a d a r S A R Imageon aD i g i t a l T e r r a i nMo d e l , a n dO v e r l a y with S a t e l l i t e S P O T D a t a
... satellite data, reveals a specific problem. Data can be more or less noisy, but especially the geometry of their acquisition requires corrections for comparaisons between ...map data coming from ...
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Proposal of using GIS for multi criteria evaluation of environmentally friendly use of skidding technologies in forestry
... real terrain conditions were used, no significant errors were recorded in classification of the categories of environmentally friendly use for the selected skid- ding and forwarding ...input data layers are ...
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Opportunities from low-resolution modelling of river morphology in remote parts of the world
... the model proposed here is able to describe the longitudinal evolution of a river reach at non-detailed spa- tial and temporal scales by using a basic ...and digital terrain models (DTMs) rather than ...
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Study of the LiDAR accuracy in mapping forest road alignments and estimating the earthwork volume
... elevation data about longitudinal section (Evans et ...resolution digital terrain model extracted from LiDAR can be used to produce rapid, easy and ac- curate longitudinal section of ...
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Charting the course for future developments in marine geomorphometry: an introduction to the special issue
... of terrain objects/features, is also well-represented in this special ...scale-based model for extracting and quantifying characteristics of submarine landforms (mainly sand dunes, ripples, mega ripples, ...
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Modelling terrain erosion susceptibility of logged and regenerated forested region in northern Borneo through the Analytical Hierarchy Process (AHP) and GIS techniques
... and terrain susceptibility ...the digital elevation model as input ...towards terrain susceptibility and gullying, the relative scores were added to each class in a simple pro- gression and ...
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Use of the Wavelet Transform for Digital Terrain Model Edge Detection (Special Issue—Wavelet Analysis)
... The data used in the experiments are related to the DTM of an area of the Poly- technic Center of the Federal University of Paraná (Figure 4). The DTM was obtained by laser profiling (Lidar: Laser Dectection and ...
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Canopy height estimation from lidar data using open source software compared with commercial software
... of Digital Terrain Model (DTM) and Digital Surface Model (DSM), further on estimates the canopy height by using Light Detection and Ranging (LIDAR) ...a digital representation of ...
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Selection of Artificial Recharge Structures using GIS and GEO Physical Method in Nelamangala Area Bengaluru Rural District
... A GIS is an information system designed to work with data referenced by spatial/geographic coordinates. GIS technology integrates common database operations such as query and statistical analysis with the unique ...
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