搜索结果: 1-15 共查到“测绘科学技术 Digital terrain models”相关记录17条 . 查询时间(0.078 秒)
AN EFFICIENT METHOD TO CREATE DIGITAL TERRAIN MODELS FROM POINT CLOUDS COLLECTED BY MOBILE LiDAR SYSTEMS
Mobile systems point cloud Digital Terrain Models LiDAR Delaunay triangulation Laplacian operator
2017/7/12
The digital terrain models (DTM) assume an essential role in all types of road maintenance, water supply and sanitation projects. The demand of such information is more significant in developing count...
SPATIAL RESOLUTION EFFECTS OF DIGITAL TERRAIN MODELS ON LANDSLIDE SUSCEPTIBILITY ANALYSIS
Landslide Susceptibility analysis Certainty factor Artificial neural networks Remote sensing
2016/11/30
The purposes of this study are to identify the maximum number of correlated factors for landslide susceptibility mapping and to evaluate landslide susceptibility at Sihjhong river catchment in the sou...
DIGITAL TERRAIN MODELS FROM MOBILE LASER SCANNING DATA IN MORAVIAN KARST
Mobile Mapping Digital Terrain Model 3D Point Cloud DMR 4G
2016/7/27
During the last ten years, mobile laser scanning (MLS) systems have become a very popular and efficient technology for capturing reality in 3D. A 3D laser scanner mounted on the top of a moving vehicl...
ANALYSIS OF THE PIT REMOVAL METHODS IN DIGITAL TERRAIN MODELS OF VARIOUS RESOLUTIONS
Pit removal DTM photogrammetry
2016/7/8
Digital terrain model (DTM) is the base for calculation of the surface runoff under the influence of the gravity (gravity flow) in hydrological analysis. It is important to produce hydrologically corr...
High resolution digital terrain models of shallow lake basins - Towards modelling dynamics of sedimentation for multithematic ecosystems research
High resolution digital terrain models shallow lake basins Towards modelling dynamics sedimentation multithematic ecosystems research
2016/5/20
Research on GIS applications in the real world context has to be strengthened besides developing GIS application software itself. An ecologically important field of applications is the integration of ...
Automatic Generation of Digital Terrain Models from CARTOSAT-1 STEREO IMAGES
Institute for Applied Computer Science Bundeswehr University Munich D-85577 Neubiberg Germany
2016/1/25
This paper proposes a novel algorithm for automatic Digital Terrain Model (DTM) generation from high resolution CARTOSAT-1
satellite images generating accurate and reliable results. It consists of tw...
MULTI-RESOLUTION REPRESENTATION OF DIGITAL TERRAIN MODELS WITH TOPOGRAPHICAL FEATURES PRESERVATION
Geometry Geomorphology Extraction Simplification Feature Multi-resolution
2015/12/23
Multi-resolution TIN model is a promising solution for achieving rapid visualization speed and interactive frame rates in the contexts of visualization, virtual reality (VR), and geographic informatio...
Automated Quality Control of Digital Terrain Models
Photogrammetry DEM/DTM Error Quality Correlation
2015/12/3
The paper demonstrates modified cross-correlation methods to detect height errors of DTM points based on stereo-pairs of aerial images. The usual cross-correlation method is extended using dynamic dim...
A ROBUST ALGORITHM FOR ESTIMATING DIGITAL TERRAIN MODELS FROM DIGITAL SURFACE MODELS IN DENSE URBAN AREAS
DSM DTM Elastic Grid Outliers Robust Statistics
2015/8/31
This paper describes an algorithm in order to derive DTMs (Digital Terrain Models) from correlation DSMs (Digital Surface Models) and above-ground (buildings and vegetation) masks in dense urban areas...
A ROBUST ALGORITHM FOR ESTIMATING DIGITAL TERRAIN MODELS FROM DIGITAL SURFACE MODELS IN DENSE URBAN AREAS
DSM DTM Elastic Grid Outliers Robust Statistics
2015/8/28
This paper describes an algorithm in order to derive DTMs (Digital Terrain Models) from correlation DSMs (Digital Surface Models) and above-ground (buildings and vegetation) masks in dense urban areas...
Multi-image Shape-from-shading: Derivation of Planetary Digital Terrain Models Using Clementine Images
High-resolution DTM extraterrestrial surfaces reconstruction method
2015/7/8
In many cases, the derivation of high-resolution digital terrain models (DTMs) from planetary surfaces using only conventional
digital image matching is a problem. The matching methods need at least ...
QUALITY MEASURES FOR DIGITAL TERRAIN MODELS
DEM/DTM Quality Laserscanning LIDAR Photogrammetry
2015/6/1
In the last few years a lot of new possibilities for the acquisition of terrain data were developed. Next to new developments in the area of digital photogrammetry due to automated image matching tech...
DIGITAL TERRAIN MODELS FROM AIRBORNE LASER SCANNER DATA - A GRID BASED APPROACH
airborne laser scanning DTM generation
2015/3/25
Since Airborne laser scanning sensors are operational and the data capture, including the calculation of the exterior orientation by
using GPS and INS, has reached a high level of automation, the fo...
DIGITAL TERRAIN MODELS IN DENSE URBAN AREAS
DTM extraction Laser scanning image processing urban remote sensing
2015/3/10
In this paper we consider the problem of DTM extraction in dense urban areas. To this aim, we need valuable and reliable data in the tiny open areas among buildings, and a suitable algorithm to recons...
INFLUENCE OF TOPOCLIMATIC VARIABLES DERIVATED FROM DIGITAL TERRAIN MODELS OVER THE VEGETATION REGENERATION PROCESSES IN BURNED AREAS
DTM NDVI curvature maps direct solar radiation maps upslope catchment area regenertion vegetal cover
2015/2/4
In this work, the signification of some topo-climatic variables deduced from a DEM over vegetation regeneration
processes after wildfires monitored on a semi-arid region from Landsat TM images has be...